20702240

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{269}}^1$

素因数の和:334

約数の個数: 96

約数和(自身を含む): 54295920

約数和(自身を除く): 33593680

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 37, 40, 52, 65, 74, 80, 104, 130, 148, 160, 185, 208, 260, 269, 296, 370, 416, 481, 520, 538, 592, 740, 962, 1040, 1076, 1184, 1345, 1480, 1924, 2080, 2152, 2405, 2690, 2960, 3497, 3848, 4304, 4810, 5380, 5920, 6994, 7696, 8608, 9620, 9953, 10760, 13988, 15392, 17485, 19240, 19906, 21520, 27976, 34970, 38480, 39812, 43040, 49765, 55952, 69940, 76960, 79624, 99530, 111904, 129389, 139880, 159248, 199060, 258778, 279760, 318496, 398120, 517556, 559520, 646945, 796240, 1035112, 1293890, 1592480, 2070224, 2587780, 4140448, 5175560, 10351120, 20702240]

約数ペア:

[(1, 20702240), (2, 10351120), (4, 5175560), (5, 4140448), (8, 2587780), (10, 2070224), (13, 1592480), (16, 1293890), (20, 1035112), (26, 796240), (32, 646945), (37, 559520), (40, 517556), (52, 398120), (65, 318496), (74, 279760), (80, 258778), (104, 199060), (130, 159248), (148, 139880), (160, 129389), (185, 111904), (208, 99530), (260, 79624), (269, 76960), (296, 69940), (370, 55952), (416, 49765), (481, 43040), (520, 39812), (538, 38480), (592, 34970), (740, 27976), (962, 21520), (1040, 19906), (1076, 19240), (1184, 17485), (1345, 15392), (1480, 13988), (1924, 10760), (2080, 9953), (2152, 9620), (2405, 8608), (2690, 7696), (2960, 6994), (3497, 5920), (3848, 5380), (4304, 4810)]