21359640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:217

約数の個数: 128

約数和(自身を含む): 68428800

約数和(自身を除く): 47069160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 71, 92, 109, 115, 120, 138, 142, 184, 213, 218, 230, 276, 284, 327, 345, 355, 426, 436, 460, 545, 552, 568, 654, 690, 710, 852, 872, 920, 1065, 1090, 1308, 1380, 1420, 1633, 1635, 1704, 2130, 2180, 2507, 2616, 2760, 2840, 3266, 3270, 4260, 4360, 4899, 5014, 6532, 6540, 7521, 7739, 8165, 8520, 9798, 10028, 12535, 13064, 13080, 15042, 15478, 16330, 19596, 20056, 23217, 24495, 25070, 30084, 30956, 32660, 37605, 38695, 39192, 46434, 48990, 50140, 60168, 61912, 65320, 75210, 77390, 92868, 97980, 100280, 116085, 150420, 154780, 177997, 185736, 195960, 232170, 300840, 309560, 355994, 464340, 533991, 711988, 889985, 928680, 1067982, 1423976, 1779970, 2135964, 2669955, 3559940, 4271928, 5339910, 7119880, 10679820, 21359640]

約数ペア:

[(1, 21359640), (2, 10679820), (3, 7119880), (4, 5339910), (5, 4271928), (6, 3559940), (8, 2669955), (10, 2135964), (12, 1779970), (15, 1423976), (20, 1067982), (23, 928680), (24, 889985), (30, 711988), (40, 533991), (46, 464340), (60, 355994), (69, 309560), (71, 300840), (92, 232170), (109, 195960), (115, 185736), (120, 177997), (138, 154780), (142, 150420), (184, 116085), (213, 100280), (218, 97980), (230, 92868), (276, 77390), (284, 75210), (327, 65320), (345, 61912), (355, 60168), (426, 50140), (436, 48990), (460, 46434), (545, 39192), (552, 38695), (568, 37605), (654, 32660), (690, 30956), (710, 30084), (852, 25070), (872, 24495), (920, 23217), (1065, 20056), (1090, 19596), (1308, 16330), (1380, 15478), (1420, 15042), (1633, 13080), (1635, 13064), (1704, 12535), (2130, 10028), (2180, 9798), (2507, 8520), (2616, 8165), (2760, 7739), (2840, 7521), (3266, 6540), (3270, 6532), (4260, 5014), (4360, 4899)]