21294768400

素因数分解:

$2^4\times 5^2\times {\mathrm{4243}}^1\times {\mathrm{12547}}^1$

素因数の和:16808

約数の個数: 60

約数和(自身を含む): 51176817232

約数和(自身を除く): 29882048832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 4243, 8486, 12547, 16972, 21215, 25094, 33944, 42430, 50188, 62735, 67888, 84860, 100376, 106075, 125470, 169720, 200752, 212150, 250940, 313675, 339440, 424300, 501880, 627350, 848600, 1003760, 1254700, 1697200, 2509400, 5018800, 53236921, 106473842, 212947684, 266184605, 425895368, 532369210, 851790736, 1064738420, 1330923025, 2129476840, 2661846050, 4258953680, 5323692100, 10647384200, 21294768400]

約数ペア:

[(1, 21294768400), (2, 10647384200), (4, 5323692100), (5, 4258953680), (8, 2661846050), (10, 2129476840), (16, 1330923025), (20, 1064738420), (25, 851790736), (40, 532369210), (50, 425895368), (80, 266184605), (100, 212947684), (200, 106473842), (400, 53236921), (4243, 5018800), (8486, 2509400), (12547, 1697200), (16972, 1254700), (21215, 1003760), (25094, 848600), (33944, 627350), (42430, 501880), (50188, 424300), (62735, 339440), (67888, 313675), (84860, 250940), (100376, 212150), (106075, 200752), (125470, 169720)]