8200400

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1$

素因数の和:133

約数の個数: 120

約数和(自身を含む): 22602720

約数和(自身を除く): 14402320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 25, 26, 38, 40, 50, 52, 65, 76, 80, 83, 95, 100, 104, 130, 152, 166, 190, 200, 208, 247, 260, 304, 325, 332, 380, 400, 415, 475, 494, 520, 650, 664, 760, 830, 950, 988, 1040, 1079, 1235, 1300, 1328, 1520, 1577, 1660, 1900, 1976, 2075, 2158, 2470, 2600, 3154, 3320, 3800, 3952, 4150, 4316, 4940, 5200, 5395, 6175, 6308, 6640, 7600, 7885, 8300, 8632, 9880, 10790, 12350, 12616, 15770, 16600, 17264, 19760, 20501, 21580, 24700, 25232, 26975, 31540, 33200, 39425, 41002, 43160, 49400, 53950, 63080, 78850, 82004, 86320, 98800, 102505, 107900, 126160, 157700, 164008, 205010, 215800, 315400, 328016, 410020, 431600, 512525, 630800, 820040, 1025050, 1640080, 2050100, 4100200, 8200400]

約数ペア:

[(1, 8200400), (2, 4100200), (4, 2050100), (5, 1640080), (8, 1025050), (10, 820040), (13, 630800), (16, 512525), (19, 431600), (20, 410020), (25, 328016), (26, 315400), (38, 215800), (40, 205010), (50, 164008), (52, 157700), (65, 126160), (76, 107900), (80, 102505), (83, 98800), (95, 86320), (100, 82004), (104, 78850), (130, 63080), (152, 53950), (166, 49400), (190, 43160), (200, 41002), (208, 39425), (247, 33200), (260, 31540), (304, 26975), (325, 25232), (332, 24700), (380, 21580), (400, 20501), (415, 19760), (475, 17264), (494, 16600), (520, 15770), (650, 12616), (664, 12350), (760, 10790), (830, 9880), (950, 8632), (988, 8300), (1040, 7885), (1079, 7600), (1235, 6640), (1300, 6308), (1328, 6175), (1520, 5395), (1577, 5200), (1660, 4940), (1900, 4316), (1976, 4150), (2075, 3952), (2158, 3800), (2470, 3320), (2600, 3154)]