28250040

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{199}}^1$

素因数の和:246

約数の個数: 192

約数和(自身を含む): 105408000

約数和(自身を除く): 77157960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 52, 56, 60, 65, 70, 78, 84, 91, 104, 105, 120, 130, 140, 156, 168, 169, 182, 195, 199, 210, 260, 273, 280, 312, 338, 364, 390, 398, 420, 455, 507, 520, 546, 597, 676, 728, 780, 796, 840, 845, 910, 995, 1014, 1092, 1183, 1194, 1352, 1365, 1393, 1560, 1592, 1690, 1820, 1990, 2028, 2184, 2366, 2388, 2535, 2587, 2730, 2786, 2985, 3380, 3549, 3640, 3980, 4056, 4179, 4732, 4776, 5070, 5174, 5460, 5572, 5915, 5970, 6760, 6965, 7098, 7761, 7960, 8358, 9464, 10140, 10348, 10920, 11144, 11830, 11940, 12935, 13930, 14196, 15522, 16716, 17745, 18109, 20280, 20696, 20895, 23660, 23880, 25870, 27860, 28392, 31044, 33432, 33631, 35490, 36218, 38805, 41790, 47320, 51740, 54327, 55720, 62088, 67262, 70980, 72436, 77610, 83580, 90545, 100893, 103480, 108654, 134524, 141960, 144872, 155220, 167160, 168155, 181090, 201786, 217308, 235417, 269048, 271635, 310440, 336310, 362180, 403572, 434616, 470834, 504465, 543270, 672620, 706251, 724360, 807144, 941668, 1008930, 1086540, 1177085, 1345240, 1412502, 1883336, 2017860, 2173080, 2354170, 2825004, 3531255, 4035720, 4708340, 5650008, 7062510, 9416680, 14125020, 28250040]

約数ペア:

[(1, 28250040), (2, 14125020), (3, 9416680), (4, 7062510), (5, 5650008), (6, 4708340), (7, 4035720), (8, 3531255), (10, 2825004), (12, 2354170), (13, 2173080), (14, 2017860), (15, 1883336), (20, 1412502), (21, 1345240), (24, 1177085), (26, 1086540), (28, 1008930), (30, 941668), (35, 807144), (39, 724360), (40, 706251), (42, 672620), (52, 543270), (56, 504465), (60, 470834), (65, 434616), (70, 403572), (78, 362180), (84, 336310), (91, 310440), (104, 271635), (105, 269048), (120, 235417), (130, 217308), (140, 201786), (156, 181090), (168, 168155), (169, 167160), (182, 155220), (195, 144872), (199, 141960), (210, 134524), (260, 108654), (273, 103480), (280, 100893), (312, 90545), (338, 83580), (364, 77610), (390, 72436), (398, 70980), (420, 67262), (455, 62088), (507, 55720), (520, 54327), (546, 51740), (597, 47320), (676, 41790), (728, 38805), (780, 36218), (796, 35490), (840, 33631), (845, 33432), (910, 31044), (995, 28392), (1014, 27860), (1092, 25870), (1183, 23880), (1194, 23660), (1352, 20895), (1365, 20696), (1393, 20280), (1560, 18109), (1592, 17745), (1690, 16716), (1820, 15522), (1990, 14196), (2028, 13930), (2184, 12935), (2366, 11940), (2388, 11830), (2535, 11144), (2587, 10920), (2730, 10348), (2786, 10140), (2985, 9464), (3380, 8358), (3549, 7960), (3640, 7761), (3980, 7098), (4056, 6965), (4179, 6760), (4732, 5970), (4776, 5915), (5070, 5572), (5174, 5460)]