815583420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{74279}}^1$

素因数の和:74355

約数の個数: 72

約数和(自身を含む): 2514526560

約数和(自身を除く): 1698943140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 90, 122, 180, 183, 244, 305, 366, 549, 610, 732, 915, 1098, 1220, 1830, 2196, 2745, 3660, 5490, 10980, 74279, 148558, 222837, 297116, 371395, 445674, 668511, 742790, 891348, 1114185, 1337022, 1485580, 2228370, 2674044, 3342555, 4456740, 4531019, 6685110, 9062038, 13370220, 13593057, 18124076, 22655095, 27186114, 40779171, 45310190, 54372228, 67965285, 81558342, 90620380, 135930570, 163116684, 203895855, 271861140, 407791710, 815583420]

約数ペア:

[(1, 815583420), (2, 407791710), (3, 271861140), (4, 203895855), (5, 163116684), (6, 135930570), (9, 90620380), (10, 81558342), (12, 67965285), (15, 54372228), (18, 45310190), (20, 40779171), (30, 27186114), (36, 22655095), (45, 18124076), (60, 13593057), (61, 13370220), (90, 9062038), (122, 6685110), (180, 4531019), (183, 4456740), (244, 3342555), (305, 2674044), (366, 2228370), (549, 1485580), (610, 1337022), (732, 1114185), (915, 891348), (1098, 742790), (1220, 668511), (1830, 445674), (2196, 371395), (2745, 297116), (3660, 222837), (5490, 148558), (10980, 74279)]