20815536

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1511}}^1$

素因数の和:1570

約数の個数: 80

約数和(自身を含む): 62995968

約数和(自身を除く): 42180432

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 41, 42, 48, 56, 82, 84, 112, 123, 164, 168, 246, 287, 328, 336, 492, 574, 656, 861, 984, 1148, 1511, 1722, 1968, 2296, 3022, 3444, 4533, 4592, 6044, 6888, 9066, 10577, 12088, 13776, 18132, 21154, 24176, 31731, 36264, 42308, 61951, 63462, 72528, 84616, 123902, 126924, 169232, 185853, 247804, 253848, 371706, 433657, 495608, 507696, 743412, 867314, 991216, 1300971, 1486824, 1734628, 2601942, 2973648, 3469256, 5203884, 6938512, 10407768, 20815536]

約数ペア:

[(1, 20815536), (2, 10407768), (3, 6938512), (4, 5203884), (6, 3469256), (7, 2973648), (8, 2601942), (12, 1734628), (14, 1486824), (16, 1300971), (21, 991216), (24, 867314), (28, 743412), (41, 507696), (42, 495608), (48, 433657), (56, 371706), (82, 253848), (84, 247804), (112, 185853), (123, 169232), (164, 126924), (168, 123902), (246, 84616), (287, 72528), (328, 63462), (336, 61951), (492, 42308), (574, 36264), (656, 31731), (861, 24176), (984, 21154), (1148, 18132), (1511, 13776), (1722, 12088), (1968, 10577), (2296, 9066), (3022, 6888), (3444, 6044), (4533, 4592)]