20969498175

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{219979}}^1$

素因数の和:220064

約数の個数: 48

約数和(自身を含む): 36660986880

約数和(自身を除く): 15691488705

約数列:

[1, 3, 5, 15, 25, 31, 41, 75, 93, 123, 155, 205, 465, 615, 775, 1025, 1271, 2325, 3075, 3813, 6355, 19065, 31775, 95325, 219979, 659937, 1099895, 3299685, 5499475, 6819349, 9019139, 16498425, 20458047, 27057417, 34096745, 45095695, 102290235, 135287085, 170483725, 225478475, 279593309, 511451175, 676435425, 838779927, 1397966545, 4193899635, 6989832725, 20969498175]

約数ペア:

[(1, 20969498175), (3, 6989832725), (5, 4193899635), (15, 1397966545), (25, 838779927), (31, 676435425), (41, 511451175), (75, 279593309), (93, 225478475), (123, 170483725), (155, 135287085), (205, 102290235), (465, 45095695), (615, 34096745), (775, 27057417), (1025, 20458047), (1271, 16498425), (2325, 9019139), (3075, 6819349), (3813, 5499475), (6355, 3299685), (19065, 1099895), (31775, 659937), (95325, 219979)]