212478340

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{4129}}^1$

素因数の和:4252

約数の個数: 48

約数和(自身を含む): 466260480

約数和(自身を除く): 253782140

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 83, 124, 155, 166, 310, 332, 415, 620, 830, 1660, 2573, 4129, 5146, 8258, 10292, 12865, 16516, 20645, 25730, 41290, 51460, 82580, 127999, 255998, 342707, 511996, 639995, 685414, 1279990, 1370828, 1713535, 2559980, 3427070, 6854140, 10623917, 21247834, 42495668, 53119585, 106239170, 212478340]

約数ペア:

[(1, 212478340), (2, 106239170), (4, 53119585), (5, 42495668), (10, 21247834), (20, 10623917), (31, 6854140), (62, 3427070), (83, 2559980), (124, 1713535), (155, 1370828), (166, 1279990), (310, 685414), (332, 639995), (415, 511996), (620, 342707), (830, 255998), (1660, 127999), (2573, 82580), (4129, 51460), (5146, 41290), (8258, 25730), (10292, 20645), (12865, 16516)]