21970320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2953}}^1$

素因数の和:3000

約数の個数: 80

約数和(自身を含む): 70328832

約数和(自身を除く): 48358512

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 620, 744, 930, 1240, 1488, 1860, 2480, 2953, 3720, 5906, 7440, 8859, 11812, 14765, 17718, 23624, 29530, 35436, 44295, 47248, 59060, 70872, 88590, 91543, 118120, 141744, 177180, 183086, 236240, 274629, 354360, 366172, 457715, 549258, 708720, 732344, 915430, 1098516, 1373145, 1464688, 1830860, 2197032, 2746290, 3661720, 4394064, 5492580, 7323440, 10985160, 21970320]

約数ペア:

[(1, 21970320), (2, 10985160), (3, 7323440), (4, 5492580), (5, 4394064), (6, 3661720), (8, 2746290), (10, 2197032), (12, 1830860), (15, 1464688), (16, 1373145), (20, 1098516), (24, 915430), (30, 732344), (31, 708720), (40, 549258), (48, 457715), (60, 366172), (62, 354360), (80, 274629), (93, 236240), (120, 183086), (124, 177180), (155, 141744), (186, 118120), (240, 91543), (248, 88590), (310, 70872), (372, 59060), (465, 47248), (496, 44295), (620, 35436), (744, 29530), (930, 23624), (1240, 17718), (1488, 14765), (1860, 11812), (2480, 8859), (2953, 7440), (3720, 5906)]