20400984

素因数分解:

$2^3\times 3^4\times {\mathrm{19}}^1\times {\mathrm{1657}}^1$

素因数の和:1694

約数の個数: 80

約数和(自身を含む): 60185400

約数和(自身を除く): 39784416

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 27, 36, 38, 54, 57, 72, 76, 81, 108, 114, 152, 162, 171, 216, 228, 324, 342, 456, 513, 648, 684, 1026, 1368, 1539, 1657, 2052, 3078, 3314, 4104, 4971, 6156, 6628, 9942, 12312, 13256, 14913, 19884, 29826, 31483, 39768, 44739, 59652, 62966, 89478, 94449, 119304, 125932, 134217, 178956, 188898, 251864, 268434, 283347, 357912, 377796, 536868, 566694, 755592, 850041, 1073736, 1133388, 1700082, 2266776, 2550123, 3400164, 5100246, 6800328, 10200492, 20400984]

約数ペア:

[(1, 20400984), (2, 10200492), (3, 6800328), (4, 5100246), (6, 3400164), (8, 2550123), (9, 2266776), (12, 1700082), (18, 1133388), (19, 1073736), (24, 850041), (27, 755592), (36, 566694), (38, 536868), (54, 377796), (57, 357912), (72, 283347), (76, 268434), (81, 251864), (108, 188898), (114, 178956), (152, 134217), (162, 125932), (171, 119304), (216, 94449), (228, 89478), (324, 62966), (342, 59652), (456, 44739), (513, 39768), (648, 31483), (684, 29826), (1026, 19884), (1368, 14913), (1539, 13256), (1657, 12312), (2052, 9942), (3078, 6628), (3314, 6156), (4104, 4971)]