27980920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{3347}}^1$

素因数の和:3388

約数の個数: 64

約数和(自身を含む): 72316800

約数和(自身を除く): 44335880

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 110, 152, 190, 209, 220, 380, 418, 440, 760, 836, 1045, 1672, 2090, 3347, 4180, 6694, 8360, 13388, 16735, 26776, 33470, 36817, 63593, 66940, 73634, 127186, 133880, 147268, 184085, 254372, 294536, 317965, 368170, 508744, 635930, 699523, 736340, 1271860, 1399046, 1472680, 2543720, 2798092, 3497615, 5596184, 6995230, 13990460, 27980920]

約数ペア:

[(1, 27980920), (2, 13990460), (4, 6995230), (5, 5596184), (8, 3497615), (10, 2798092), (11, 2543720), (19, 1472680), (20, 1399046), (22, 1271860), (38, 736340), (40, 699523), (44, 635930), (55, 508744), (76, 368170), (88, 317965), (95, 294536), (110, 254372), (152, 184085), (190, 147268), (209, 133880), (220, 127186), (380, 73634), (418, 66940), (440, 63593), (760, 36817), (836, 33470), (1045, 26776), (1672, 16735), (2090, 13388), (3347, 8360), (4180, 6694)]