20924940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{257}}^1$

素因数の和:351

約数の個数: 96

約数和(自身を含む): 62415360

約数和(自身を除く): 41490420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 59, 60, 69, 92, 115, 118, 138, 177, 230, 236, 257, 276, 295, 345, 354, 460, 514, 590, 690, 708, 771, 885, 1028, 1180, 1285, 1357, 1380, 1542, 1770, 2570, 2714, 3084, 3540, 3855, 4071, 5140, 5428, 5911, 6785, 7710, 8142, 11822, 13570, 15163, 15420, 16284, 17733, 20355, 23644, 27140, 29555, 30326, 35466, 40710, 45489, 59110, 60652, 70932, 75815, 81420, 88665, 90978, 118220, 151630, 177330, 181956, 227445, 303260, 348749, 354660, 454890, 697498, 909780, 1046247, 1394996, 1743745, 2092494, 3487490, 4184988, 5231235, 6974980, 10462470, 20924940]

約数ペア:

[(1, 20924940), (2, 10462470), (3, 6974980), (4, 5231235), (5, 4184988), (6, 3487490), (10, 2092494), (12, 1743745), (15, 1394996), (20, 1046247), (23, 909780), (30, 697498), (46, 454890), (59, 354660), (60, 348749), (69, 303260), (92, 227445), (115, 181956), (118, 177330), (138, 151630), (177, 118220), (230, 90978), (236, 88665), (257, 81420), (276, 75815), (295, 70932), (345, 60652), (354, 59110), (460, 45489), (514, 40710), (590, 35466), (690, 30326), (708, 29555), (771, 27140), (885, 23644), (1028, 20355), (1180, 17733), (1285, 16284), (1357, 15420), (1380, 15163), (1542, 13570), (1770, 11822), (2570, 8142), (2714, 7710), (3084, 6785), (3540, 5911), (3855, 5428), (4071, 5140)]