28029720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1$

素因数の和:217

約数の個数: 128

約数和(自身を含む): 88646400

約数和(自身を除く): 60616680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 37, 40, 59, 60, 74, 107, 111, 118, 120, 148, 177, 185, 214, 222, 236, 295, 296, 321, 354, 370, 428, 444, 472, 535, 555, 590, 642, 708, 740, 856, 885, 888, 1070, 1110, 1180, 1284, 1416, 1480, 1605, 1770, 2140, 2183, 2220, 2360, 2568, 3210, 3540, 3959, 4280, 4366, 4440, 6313, 6420, 6549, 7080, 7918, 8732, 10915, 11877, 12626, 12840, 13098, 15836, 17464, 18939, 19795, 21830, 23754, 25252, 26196, 31565, 31672, 32745, 37878, 39590, 43660, 47508, 50504, 52392, 59385, 63130, 65490, 75756, 79180, 87320, 94695, 95016, 118770, 126260, 130980, 151512, 158360, 189390, 233581, 237540, 252520, 261960, 378780, 467162, 475080, 700743, 757560, 934324, 1167905, 1401486, 1868648, 2335810, 2802972, 3503715, 4671620, 5605944, 7007430, 9343240, 14014860, 28029720]

約数ペア:

[(1, 28029720), (2, 14014860), (3, 9343240), (4, 7007430), (5, 5605944), (6, 4671620), (8, 3503715), (10, 2802972), (12, 2335810), (15, 1868648), (20, 1401486), (24, 1167905), (30, 934324), (37, 757560), (40, 700743), (59, 475080), (60, 467162), (74, 378780), (107, 261960), (111, 252520), (118, 237540), (120, 233581), (148, 189390), (177, 158360), (185, 151512), (214, 130980), (222, 126260), (236, 118770), (295, 95016), (296, 94695), (321, 87320), (354, 79180), (370, 75756), (428, 65490), (444, 63130), (472, 59385), (535, 52392), (555, 50504), (590, 47508), (642, 43660), (708, 39590), (740, 37878), (856, 32745), (885, 31672), (888, 31565), (1070, 26196), (1110, 25252), (1180, 23754), (1284, 21830), (1416, 19795), (1480, 18939), (1605, 17464), (1770, 15836), (2140, 13098), (2183, 12840), (2220, 12626), (2360, 11877), (2568, 10915), (3210, 8732), (3540, 7918), (3959, 7080), (4280, 6549), (4366, 6420), (4440, 6313)]