81355530

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{2693}}^1$

素因数の和:2775

約数の個数: 64

約数和(自身を含む): 209485440

約数和(自身を除く): 128129910

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 53, 57, 95, 106, 114, 159, 190, 265, 285, 318, 530, 570, 795, 1007, 1590, 2014, 2693, 3021, 5035, 5386, 6042, 8079, 10070, 13465, 15105, 16158, 26930, 30210, 40395, 51167, 80790, 102334, 142729, 153501, 255835, 285458, 307002, 428187, 511670, 713645, 767505, 856374, 1427290, 1535010, 2140935, 2711851, 4281870, 5423702, 8135553, 13559255, 16271106, 27118510, 40677765, 81355530]

約数ペア:

[(1, 81355530), (2, 40677765), (3, 27118510), (5, 16271106), (6, 13559255), (10, 8135553), (15, 5423702), (19, 4281870), (30, 2711851), (38, 2140935), (53, 1535010), (57, 1427290), (95, 856374), (106, 767505), (114, 713645), (159, 511670), (190, 428187), (265, 307002), (285, 285458), (318, 255835), (530, 153501), (570, 142729), (795, 102334), (1007, 80790), (1590, 51167), (2014, 40395), (2693, 30210), (3021, 26930), (5035, 16158), (5386, 15105), (6042, 13465), (8079, 10070)]