19031920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{659}}^1$

素因数の和:710

約数の個数: 60

約数和(自身を含む): 46771560

約数和(自身を除く): 27739640

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 361, 380, 659, 722, 760, 1318, 1444, 1520, 1805, 2636, 2888, 3295, 3610, 5272, 5776, 6590, 7220, 10544, 12521, 13180, 14440, 25042, 26360, 28880, 50084, 52720, 62605, 100168, 125210, 200336, 237899, 250420, 475798, 500840, 951596, 1001680, 1189495, 1903192, 2378990, 3806384, 4757980, 9515960, 19031920]

約数ペア:

[(1, 19031920), (2, 9515960), (4, 4757980), (5, 3806384), (8, 2378990), (10, 1903192), (16, 1189495), (19, 1001680), (20, 951596), (38, 500840), (40, 475798), (76, 250420), (80, 237899), (95, 200336), (152, 125210), (190, 100168), (304, 62605), (361, 52720), (380, 50084), (659, 28880), (722, 26360), (760, 25042), (1318, 14440), (1444, 13180), (1520, 12521), (1805, 10544), (2636, 7220), (2888, 6590), (3295, 5776), (3610, 5272)]