1881914660

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{61}}^1\times {\mathrm{4273}}^1$

素因数の和:4381

約数の個数: 72

約数和(自身を含む): 4240337976

約数和(自身を除く): 2358423316

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 61, 76, 95, 122, 190, 244, 305, 361, 380, 610, 722, 1159, 1220, 1444, 1805, 2318, 3610, 4273, 4636, 5795, 7220, 8546, 11590, 17092, 21365, 22021, 23180, 42730, 44042, 81187, 85460, 88084, 110105, 162374, 220210, 260653, 324748, 405935, 440420, 521306, 811870, 1042612, 1303265, 1542553, 1623740, 2606530, 3085106, 4952407, 5213060, 6170212, 7712765, 9904814, 15425530, 19809628, 24762035, 30851060, 49524070, 94095733, 99048140, 188191466, 376382932, 470478665, 940957330, 1881914660]

約数ペア:

[(1, 1881914660), (2, 940957330), (4, 470478665), (5, 376382932), (10, 188191466), (19, 99048140), (20, 94095733), (38, 49524070), (61, 30851060), (76, 24762035), (95, 19809628), (122, 15425530), (190, 9904814), (244, 7712765), (305, 6170212), (361, 5213060), (380, 4952407), (610, 3085106), (722, 2606530), (1159, 1623740), (1220, 1542553), (1444, 1303265), (1805, 1042612), (2318, 811870), (3610, 521306), (4273, 440420), (4636, 405935), (5795, 324748), (7220, 260653), (8546, 220210), (11590, 162374), (17092, 110105), (21365, 88084), (22021, 85460), (23180, 81187), (42730, 44042)]