18650721460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{571}}^1\times {\mathrm{1289}}^1$

素因数の和:2057

約数の個数: 96

約数和(自身を含む): 45122837760

約数和(自身を除く): 26472116300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 181, 362, 571, 724, 905, 1142, 1267, 1289, 1810, 2284, 2534, 2578, 2855, 3620, 3997, 5068, 5156, 5710, 6335, 6445, 7994, 9023, 11420, 12670, 12890, 15988, 18046, 19985, 25340, 25780, 36092, 39970, 45115, 79940, 90230, 103351, 180460, 206702, 233309, 413404, 466618, 516755, 723457, 736019, 933236, 1033510, 1166545, 1446914, 1472038, 1633163, 2067020, 2333090, 2893828, 2944076, 3266326, 3617285, 3680095, 4666180, 5152133, 6532652, 7234570, 7360190, 8165815, 10304266, 14469140, 14720380, 16331630, 20608532, 25760665, 32663260, 51521330, 103042660, 133219439, 266438878, 532877756, 666097195, 932536073, 1332194390, 1865072146, 2664388780, 3730144292, 4662680365, 9325360730, 18650721460]

約数ペア:

[(1, 18650721460), (2, 9325360730), (4, 4662680365), (5, 3730144292), (7, 2664388780), (10, 1865072146), (14, 1332194390), (20, 932536073), (28, 666097195), (35, 532877756), (70, 266438878), (140, 133219439), (181, 103042660), (362, 51521330), (571, 32663260), (724, 25760665), (905, 20608532), (1142, 16331630), (1267, 14720380), (1289, 14469140), (1810, 10304266), (2284, 8165815), (2534, 7360190), (2578, 7234570), (2855, 6532652), (3620, 5152133), (3997, 4666180), (5068, 3680095), (5156, 3617285), (5710, 3266326), (6335, 2944076), (6445, 2893828), (7994, 2333090), (9023, 2067020), (11420, 1633163), (12670, 1472038), (12890, 1446914), (15988, 1166545), (18046, 1033510), (19985, 933236), (25340, 736019), (25780, 723457), (36092, 516755), (39970, 466618), (45115, 413404), (79940, 233309), (90230, 206702), (103351, 180460)]