16400800

素因数分解:

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

素因数の和:135

約数の個数: 144

約数和(自身を含む): 45934560

約数和(自身を除く): 29533760

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 25, 26, 32, 38, 40, 50, 52, 65, 76, 80, 83, 95, 100, 104, 130, 152, 160, 166, 190, 200, 208, 247, 260, 304, 325, 332, 380, 400, 415, 416, 475, 494, 520, 608, 650, 664, 760, 800, 830, 950, 988, 1040, 1079, 1235, 1300, 1328, 1520, 1577, 1660, 1900, 1976, 2075, 2080, 2158, 2470, 2600, 2656, 3040, 3154, 3320, 3800, 3952, 4150, 4316, 4940, 5200, 5395, 6175, 6308, 6640, 7600, 7885, 7904, 8300, 8632, 9880, 10400, 10790, 12350, 12616, 13280, 15200, 15770, 16600, 17264, 19760, 20501, 21580, 24700, 25232, 26975, 31540, 33200, 34528, 39425, 39520, 41002, 43160, 49400, 50464, 53950, 63080, 66400, 78850, 82004, 86320, 98800, 102505, 107900, 126160, 157700, 164008, 172640, 197600, 205010, 215800, 252320, 315400, 328016, 410020, 431600, 512525, 630800, 656032, 820040, 863200, 1025050, 1261600, 1640080, 2050100, 3280160, 4100200, 8200400, 16400800]

約数ペア:

[(1, 16400800), (2, 8200400), (4, 4100200), (5, 3280160), (8, 2050100), (10, 1640080), (13, 1261600), (16, 1025050), (19, 863200), (20, 820040), (25, 656032), (26, 630800), (32, 512525), (38, 431600), (40, 410020), (50, 328016), (52, 315400), (65, 252320), (76, 215800), (80, 205010), (83, 197600), (95, 172640), (100, 164008), (104, 157700), (130, 126160), (152, 107900), (160, 102505), (166, 98800), (190, 86320), (200, 82004), (208, 78850), (247, 66400), (260, 63080), (304, 53950), (325, 50464), (332, 49400), (380, 43160), (400, 41002), (415, 39520), (416, 39425), (475, 34528), (494, 33200), (520, 31540), (608, 26975), (650, 25232), (664, 24700), (760, 21580), (800, 20501), (830, 19760), (950, 17264), (988, 16600), (1040, 15770), (1079, 15200), (1235, 13280), (1300, 12616), (1328, 12350), (1520, 10790), (1577, 10400), (1660, 9880), (1900, 8632), (1976, 8300), (2075, 7904), (2080, 7885), (2158, 7600), (2470, 6640), (2600, 6308), (2656, 6175), (3040, 5395), (3154, 5200), (3320, 4940), (3800, 4316), (3952, 4150)]