21704160

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{439}}^1$

素因数の和:560

約数の個数: 96

約数和(自身を含む): 69189120

約数和(自身を除く): 47484960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 103, 120, 160, 206, 240, 309, 412, 439, 480, 515, 618, 824, 878, 1030, 1236, 1317, 1545, 1648, 1756, 2060, 2195, 2472, 2634, 3090, 3296, 3512, 4120, 4390, 4944, 5268, 6180, 6585, 7024, 8240, 8780, 9888, 10536, 12360, 13170, 14048, 16480, 17560, 21072, 24720, 26340, 35120, 42144, 45217, 49440, 52680, 70240, 90434, 105360, 135651, 180868, 210720, 226085, 271302, 361736, 452170, 542604, 678255, 723472, 904340, 1085208, 1356510, 1446944, 1808680, 2170416, 2713020, 3617360, 4340832, 5426040, 7234720, 10852080, 21704160]

約数ペア:

[(1, 21704160), (2, 10852080), (3, 7234720), (4, 5426040), (5, 4340832), (6, 3617360), (8, 2713020), (10, 2170416), (12, 1808680), (15, 1446944), (16, 1356510), (20, 1085208), (24, 904340), (30, 723472), (32, 678255), (40, 542604), (48, 452170), (60, 361736), (80, 271302), (96, 226085), (103, 210720), (120, 180868), (160, 135651), (206, 105360), (240, 90434), (309, 70240), (412, 52680), (439, 49440), (480, 45217), (515, 42144), (618, 35120), (824, 26340), (878, 24720), (1030, 21072), (1236, 17560), (1317, 16480), (1545, 14048), (1648, 13170), (1756, 12360), (2060, 10536), (2195, 9888), (2472, 8780), (2634, 8240), (3090, 7024), (3296, 6585), (3512, 6180), (4120, 5268), (4390, 4944)]