19789875

素因数分解:

$3^2\times 5^3\times 7^2\times {\mathrm{359}}^1$

素因数の和:394

約数の個数: 72

約数和(自身を含む): 41614560

約数和(自身を除く): 21824685

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 49, 63, 75, 105, 125, 147, 175, 225, 245, 315, 359, 375, 441, 525, 735, 875, 1077, 1125, 1225, 1575, 1795, 2205, 2513, 2625, 3231, 3675, 5385, 6125, 7539, 7875, 8975, 11025, 12565, 16155, 17591, 18375, 22617, 26925, 37695, 44875, 52773, 55125, 62825, 80775, 87955, 113085, 134625, 158319, 188475, 263865, 314125, 403875, 439775, 565425, 791595, 942375, 1319325, 2198875, 2827125, 3957975, 6596625, 19789875]

約数ペア:

[(1, 19789875), (3, 6596625), (5, 3957975), (7, 2827125), (9, 2198875), (15, 1319325), (21, 942375), (25, 791595), (35, 565425), (45, 439775), (49, 403875), (63, 314125), (75, 263865), (105, 188475), (125, 158319), (147, 134625), (175, 113085), (225, 87955), (245, 80775), (315, 62825), (359, 55125), (375, 52773), (441, 44875), (525, 37695), (735, 26925), (875, 22617), (1077, 18375), (1125, 17591), (1225, 16155), (1575, 12565), (1795, 11025), (2205, 8975), (2513, 7875), (2625, 7539), (3231, 6125), (3675, 5385)]