28490280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2609}}^1$

素因数の和:2643

約数の個数: 128

約数和(自身を含む): 105235200

約数和(自身を除く): 76744920

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, 182, 195, 210, 260, 273, 280, 312, 364, 390, 420, 455, 520, 546, 728, 780, 840, 910, 1092, 1365, 1560, 1820, 2184, 2609, 2730, 3640, 5218, 5460, 7827, 10436, 10920, 13045, 15654, 18263, 20872, 26090, 31308, 33917, 36526, 39135, 52180, 54789, 62616, 67834, 73052, 78270, 91315, 101751, 104360, 109578, 135668, 146104, 156540, 169585, 182630, 203502, 219156, 237419, 271336, 273945, 313080, 339170, 365260, 407004, 438312, 474838, 508755, 547890, 678340, 712257, 730520, 814008, 949676, 1017510, 1095780, 1187095, 1356680, 1424514, 1899352, 2035020, 2191560, 2374190, 2849028, 3561285, 4070040, 4748380, 5698056, 7122570, 9496760, 14245140, 28490280]

約数ペア:

[(1, 28490280), (2, 14245140), (3, 9496760), (4, 7122570), (5, 5698056), (6, 4748380), (7, 4070040), (8, 3561285), (10, 2849028), (12, 2374190), (13, 2191560), (14, 2035020), (15, 1899352), (20, 1424514), (21, 1356680), (24, 1187095), (26, 1095780), (28, 1017510), (30, 949676), (35, 814008), (39, 730520), (40, 712257), (42, 678340), (52, 547890), (56, 508755), (60, 474838), (65, 438312), (70, 407004), (78, 365260), (84, 339170), (91, 313080), (104, 273945), (105, 271336), (120, 237419), (130, 219156), (140, 203502), (156, 182630), (168, 169585), (182, 156540), (195, 146104), (210, 135668), (260, 109578), (273, 104360), (280, 101751), (312, 91315), (364, 78270), (390, 73052), (420, 67834), (455, 62616), (520, 54789), (546, 52180), (728, 39135), (780, 36526), (840, 33917), (910, 31308), (1092, 26090), (1365, 20872), (1560, 18263), (1820, 15654), (2184, 13045), (2609, 10920), (2730, 10436), (3640, 7827), (5218, 5460)]