2815671820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{19373}}^1$

素因数の和:19451

約数の個数: 72

約数和(自身を含む): 6551976816

約数和(自身を除く): 3736304996

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 169, 172, 215, 260, 338, 430, 559, 676, 845, 860, 1118, 1690, 2236, 2795, 3380, 5590, 7267, 11180, 14534, 19373, 29068, 36335, 38746, 72670, 77492, 96865, 145340, 193730, 251849, 387460, 503698, 833039, 1007396, 1259245, 1666078, 2518490, 3274037, 3332156, 4165195, 5036980, 6548074, 8330390, 10829507, 13096148, 16370185, 16660780, 21659014, 32740370, 43318028, 54147535, 65480740, 108295070, 140783591, 216590140, 281567182, 563134364, 703917955, 1407835910, 2815671820]

約数ペア:

[(1, 2815671820), (2, 1407835910), (4, 703917955), (5, 563134364), (10, 281567182), (13, 216590140), (20, 140783591), (26, 108295070), (43, 65480740), (52, 54147535), (65, 43318028), (86, 32740370), (130, 21659014), (169, 16660780), (172, 16370185), (215, 13096148), (260, 10829507), (338, 8330390), (430, 6548074), (559, 5036980), (676, 4165195), (845, 3332156), (860, 3274037), (1118, 2518490), (1690, 1666078), (2236, 1259245), (2795, 1007396), (3380, 833039), (5590, 503698), (7267, 387460), (11180, 251849), (14534, 193730), (19373, 145340), (29068, 96865), (36335, 77492), (38746, 72670)]