253840

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1$

素因数の和:199

約数の個数: 40

約数和(自身を含む): 624960

約数和(自身を除く): 371120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 167, 190, 304, 334, 380, 668, 760, 835, 1336, 1520, 1670, 2672, 3173, 3340, 6346, 6680, 12692, 13360, 15865, 25384, 31730, 50768, 63460, 126920, 253840]

約数ペア:

[(1, 253840), (2, 126920), (4, 63460), (5, 50768), (8, 31730), (10, 25384), (16, 15865), (19, 13360), (20, 12692), (38, 6680), (40, 6346), (76, 3340), (80, 3173), (95, 2672), (152, 1670), (167, 1520), (190, 1336), (304, 835), (334, 760), (380, 668)]