20300280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^3$

素因数の和:71

約数の個数: 256

約数和(自身を含む): 82252800

約数和(自身を除く): 61952520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 20, 21, 22, 24, 26, 28, 30, 33, 35, 39, 40, 42, 44, 52, 55, 56, 60, 65, 66, 70, 77, 78, 84, 88, 91, 104, 105, 110, 120, 130, 132, 140, 143, 154, 156, 165, 168, 169, 182, 195, 210, 220, 231, 260, 264, 273, 280, 286, 308, 312, 330, 338, 364, 385, 390, 420, 429, 440, 455, 462, 507, 520, 546, 572, 616, 660, 676, 715, 728, 770, 780, 840, 845, 858, 910, 924, 1001, 1014, 1092, 1144, 1155, 1183, 1320, 1352, 1365, 1430, 1540, 1560, 1690, 1716, 1820, 1848, 1859, 2002, 2028, 2145, 2184, 2197, 2310, 2366, 2535, 2730, 2860, 3003, 3080, 3380, 3432, 3549, 3640, 3718, 4004, 4056, 4290, 4394, 4620, 4732, 5005, 5070, 5460, 5577, 5720, 5915, 6006, 6591, 6760, 7098, 7436, 8008, 8580, 8788, 9240, 9295, 9464, 10010, 10140, 10920, 10985, 11154, 11830, 12012, 13013, 13182, 14196, 14872, 15015, 15379, 17160, 17576, 17745, 18590, 20020, 20280, 21970, 22308, 23660, 24024, 24167, 26026, 26364, 27885, 28392, 30030, 30758, 32955, 35490, 37180, 39039, 40040, 43940, 44616, 46137, 47320, 48334, 52052, 52728, 55770, 60060, 61516, 65065, 65910, 70980, 72501, 74360, 76895, 78078, 87880, 92274, 96668, 104104, 111540, 120120, 120835, 123032, 130130, 131820, 141960, 145002, 153790, 156156, 169169, 184548, 193336, 195195, 223080, 230685, 241670, 260260, 263640, 290004, 307580, 312312, 338338, 362505, 369096, 390390, 461370, 483340, 507507, 520520, 580008, 615160, 676676, 725010, 780780, 845845, 922740, 966680, 1015014, 1353352, 1450020, 1561560, 1691690, 1845480, 2030028, 2537535, 2900040, 3383380, 4060056, 5075070, 6766760, 10150140, 20300280]

約数ペア:

[(1, 20300280), (2, 10150140), (3, 6766760), (4, 5075070), (5, 4060056), (6, 3383380), (7, 2900040), (8, 2537535), (10, 2030028), (11, 1845480), (12, 1691690), (13, 1561560), (14, 1450020), (15, 1353352), (20, 1015014), (21, 966680), (22, 922740), (24, 845845), (26, 780780), (28, 725010), (30, 676676), (33, 615160), (35, 580008), (39, 520520), (40, 507507), (42, 483340), (44, 461370), (52, 390390), (55, 369096), (56, 362505), (60, 338338), (65, 312312), (66, 307580), (70, 290004), (77, 263640), (78, 260260), (84, 241670), (88, 230685), (91, 223080), (104, 195195), (105, 193336), (110, 184548), (120, 169169), (130, 156156), (132, 153790), (140, 145002), (143, 141960), (154, 131820), (156, 130130), (165, 123032), (168, 120835), (169, 120120), (182, 111540), (195, 104104), (210, 96668), (220, 92274), (231, 87880), (260, 78078), (264, 76895), (273, 74360), (280, 72501), (286, 70980), (308, 65910), (312, 65065), (330, 61516), (338, 60060), (364, 55770), (385, 52728), (390, 52052), (420, 48334), (429, 47320), (440, 46137), (455, 44616), (462, 43940), (507, 40040), (520, 39039), (546, 37180), (572, 35490), (616, 32955), (660, 30758), (676, 30030), (715, 28392), (728, 27885), (770, 26364), (780, 26026), (840, 24167), (845, 24024), (858, 23660), (910, 22308), (924, 21970), (1001, 20280), (1014, 20020), (1092, 18590), (1144, 17745), (1155, 17576), (1183, 17160), (1320, 15379), (1352, 15015), (1365, 14872), (1430, 14196), (1540, 13182), (1560, 13013), (1690, 12012), (1716, 11830), (1820, 11154), (1848, 10985), (1859, 10920), (2002, 10140), (2028, 10010), (2145, 9464), (2184, 9295), (2197, 9240), (2310, 8788), (2366, 8580), (2535, 8008), (2730, 7436), (2860, 7098), (3003, 6760), (3080, 6591), (3380, 6006), (3432, 5915), (3549, 5720), (3640, 5577), (3718, 5460), (4004, 5070), (4056, 5005), (4290, 4732), (4394, 4620)]