15778100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{229}}^1$

素因数の和:309

約数の個数: 72

約数和(自身を含む): 37731960

約数和(自身を除く): 21953860

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 53, 65, 100, 106, 130, 212, 229, 260, 265, 325, 458, 530, 650, 689, 916, 1060, 1145, 1300, 1325, 1378, 2290, 2650, 2756, 2977, 3445, 4580, 5300, 5725, 5954, 6890, 11450, 11908, 12137, 13780, 14885, 17225, 22900, 24274, 29770, 34450, 48548, 59540, 60685, 68900, 74425, 121370, 148850, 157781, 242740, 297700, 303425, 315562, 606850, 631124, 788905, 1213700, 1577810, 3155620, 3944525, 7889050, 15778100]

約数ペア:

[(1, 15778100), (2, 7889050), (4, 3944525), (5, 3155620), (10, 1577810), (13, 1213700), (20, 788905), (25, 631124), (26, 606850), (50, 315562), (52, 303425), (53, 297700), (65, 242740), (100, 157781), (106, 148850), (130, 121370), (212, 74425), (229, 68900), (260, 60685), (265, 59540), (325, 48548), (458, 34450), (530, 29770), (650, 24274), (689, 22900), (916, 17225), (1060, 14885), (1145, 13780), (1300, 12137), (1325, 11908), (1378, 11450), (2290, 6890), (2650, 5954), (2756, 5725), (2977, 5300), (3445, 4580)]