780780

素因数分解:

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

素因数の和:56

約数の個数: 144

約数和(自身を含む): 2951424

約数和(自身を除く): 2170644

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 13, 14, 15, 20, 21, 22, 26, 28, 30, 33, 35, 39, 42, 44, 52, 55, 60, 65, 66, 70, 77, 78, 84, 91, 105, 110, 130, 132, 140, 143, 154, 156, 165, 169, 182, 195, 210, 220, 231, 260, 273, 286, 308, 330, 338, 364, 385, 390, 420, 429, 455, 462, 507, 546, 572, 660, 676, 715, 770, 780, 845, 858, 910, 924, 1001, 1014, 1092, 1155, 1183, 1365, 1430, 1540, 1690, 1716, 1820, 1859, 2002, 2028, 2145, 2310, 2366, 2535, 2730, 2860, 3003, 3380, 3549, 3718, 4004, 4290, 4620, 4732, 5005, 5070, 5460, 5577, 5915, 6006, 7098, 7436, 8580, 9295, 10010, 10140, 11154, 11830, 12012, 13013, 14196, 15015, 17745, 18590, 20020, 22308, 23660, 26026, 27885, 30030, 35490, 37180, 39039, 52052, 55770, 60060, 65065, 70980, 78078, 111540, 130130, 156156, 195195, 260260, 390390, 780780]

約数ペア:

[(1, 780780), (2, 390390), (3, 260260), (4, 195195), (5, 156156), (6, 130130), (7, 111540), (10, 78078), (11, 70980), (12, 65065), (13, 60060), (14, 55770), (15, 52052), (20, 39039), (21, 37180), (22, 35490), (26, 30030), (28, 27885), (30, 26026), (33, 23660), (35, 22308), (39, 20020), (42, 18590), (44, 17745), (52, 15015), (55, 14196), (60, 13013), (65, 12012), (66, 11830), (70, 11154), (77, 10140), (78, 10010), (84, 9295), (91, 8580), (105, 7436), (110, 7098), (130, 6006), (132, 5915), (140, 5577), (143, 5460), (154, 5070), (156, 5005), (165, 4732), (169, 4620), (182, 4290), (195, 4004), (210, 3718), (220, 3549), (231, 3380), (260, 3003), (273, 2860), (286, 2730), (308, 2535), (330, 2366), (338, 2310), (364, 2145), (385, 2028), (390, 2002), (420, 1859), (429, 1820), (455, 1716), (462, 1690), (507, 1540), (546, 1430), (572, 1365), (660, 1183), (676, 1155), (715, 1092), (770, 1014), (780, 1001), (845, 924), (858, 910)]