20591640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{1217}}^1$

素因数の和:1281

約数の個数: 96

約数和(自身を含む): 68402880

約数和(自身を除く): 47811240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 47, 60, 72, 90, 94, 120, 141, 180, 188, 235, 282, 360, 376, 423, 470, 564, 705, 846, 940, 1128, 1217, 1410, 1692, 1880, 2115, 2434, 2820, 3384, 3651, 4230, 4868, 5640, 6085, 7302, 8460, 9736, 10953, 12170, 14604, 16920, 18255, 21906, 24340, 29208, 36510, 43812, 48680, 54765, 57199, 73020, 87624, 109530, 114398, 146040, 171597, 219060, 228796, 285995, 343194, 438120, 457592, 514791, 571990, 686388, 857985, 1029582, 1143980, 1372776, 1715970, 2059164, 2287960, 2573955, 3431940, 4118328, 5147910, 6863880, 10295820, 20591640]

約数ペア:

[(1, 20591640), (2, 10295820), (3, 6863880), (4, 5147910), (5, 4118328), (6, 3431940), (8, 2573955), (9, 2287960), (10, 2059164), (12, 1715970), (15, 1372776), (18, 1143980), (20, 1029582), (24, 857985), (30, 686388), (36, 571990), (40, 514791), (45, 457592), (47, 438120), (60, 343194), (72, 285995), (90, 228796), (94, 219060), (120, 171597), (141, 146040), (180, 114398), (188, 109530), (235, 87624), (282, 73020), (360, 57199), (376, 54765), (423, 48680), (470, 43812), (564, 36510), (705, 29208), (846, 24340), (940, 21906), (1128, 18255), (1217, 16920), (1410, 14604), (1692, 12170), (1880, 10953), (2115, 9736), (2434, 8460), (2820, 7302), (3384, 6085), (3651, 5640), (4230, 4868)]