71645240180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{271}}^1\times {\mathrm{653}}^2$

素因数の和:1617

約数の個数: 72

約数和(自身を含む): 156120566784

約数和(自身を除く): 84475326604

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 271, 310, 542, 620, 653, 1084, 1306, 1355, 2612, 2710, 3265, 5420, 6530, 8401, 13060, 16802, 20243, 33604, 40486, 42005, 80972, 84010, 101215, 168020, 176963, 202430, 353926, 404860, 426409, 707852, 852818, 884815, 1705636, 1769630, 2132045, 3539260, 4264090, 5485853, 8528180, 10971706, 13218679, 21943412, 26437358, 27429265, 52874716, 54858530, 66093395, 109717060, 115556839, 132186790, 231113678, 264373580, 462227356, 577784195, 1155568390, 2311136780, 3582262009, 7164524018, 14329048036, 17911310045, 35822620090, 71645240180]

約数ペア:

[(1, 71645240180), (2, 35822620090), (4, 17911310045), (5, 14329048036), (10, 7164524018), (20, 3582262009), (31, 2311136780), (62, 1155568390), (124, 577784195), (155, 462227356), (271, 264373580), (310, 231113678), (542, 132186790), (620, 115556839), (653, 109717060), (1084, 66093395), (1306, 54858530), (1355, 52874716), (2612, 27429265), (2710, 26437358), (3265, 21943412), (5420, 13218679), (6530, 10971706), (8401, 8528180), (13060, 5485853), (16802, 4264090), (20243, 3539260), (33604, 2132045), (40486, 1769630), (42005, 1705636), (80972, 884815), (84010, 852818), (101215, 707852), (168020, 426409), (176963, 404860), (202430, 353926)]