20899560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:319

約数の個数: 128

約数和(自身を含む): 69672960

約数和(自身を除く): 48773400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 71, 88, 110, 120, 132, 142, 165, 213, 220, 223, 264, 284, 330, 355, 426, 440, 446, 568, 660, 669, 710, 781, 852, 892, 1065, 1115, 1320, 1338, 1420, 1562, 1704, 1784, 2130, 2230, 2343, 2453, 2676, 2840, 3124, 3345, 3905, 4260, 4460, 4686, 4906, 5352, 6248, 6690, 7359, 7810, 8520, 8920, 9372, 9812, 11715, 12265, 13380, 14718, 15620, 15833, 18744, 19624, 23430, 24530, 26760, 29436, 31240, 31666, 36795, 46860, 47499, 49060, 58872, 63332, 73590, 79165, 93720, 94998, 98120, 126664, 147180, 158330, 174163, 189996, 237495, 294360, 316660, 348326, 379992, 474990, 522489, 633320, 696652, 870815, 949980, 1044978, 1393304, 1741630, 1899960, 2089956, 2612445, 3483260, 4179912, 5224890, 6966520, 10449780, 20899560]

約数ペア:

[(1, 20899560), (2, 10449780), (3, 6966520), (4, 5224890), (5, 4179912), (6, 3483260), (8, 2612445), (10, 2089956), (11, 1899960), (12, 1741630), (15, 1393304), (20, 1044978), (22, 949980), (24, 870815), (30, 696652), (33, 633320), (40, 522489), (44, 474990), (55, 379992), (60, 348326), (66, 316660), (71, 294360), (88, 237495), (110, 189996), (120, 174163), (132, 158330), (142, 147180), (165, 126664), (213, 98120), (220, 94998), (223, 93720), (264, 79165), (284, 73590), (330, 63332), (355, 58872), (426, 49060), (440, 47499), (446, 46860), (568, 36795), (660, 31666), (669, 31240), (710, 29436), (781, 26760), (852, 24530), (892, 23430), (1065, 19624), (1115, 18744), (1320, 15833), (1338, 15620), (1420, 14718), (1562, 13380), (1704, 12265), (1784, 11715), (2130, 9812), (2230, 9372), (2343, 8920), (2453, 8520), (2676, 7810), (2840, 7359), (3124, 6690), (3345, 6248), (3905, 5352), (4260, 4906), (4460, 4686)]