20610375

素因数分解:

$3^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:149

約数の個数: 64

約数和(自身を含む): 37604736

約数和(自身を除く): 16994361

約数列:

[1, 3, 5, 15, 17, 25, 51, 53, 61, 75, 85, 125, 159, 183, 255, 265, 305, 375, 425, 795, 901, 915, 1037, 1275, 1325, 1525, 2125, 2703, 3111, 3233, 3975, 4505, 4575, 5185, 6375, 6625, 7625, 9699, 13515, 15555, 16165, 19875, 22525, 22875, 25925, 48495, 54961, 67575, 77775, 80825, 112625, 129625, 164883, 242475, 274805, 337875, 388875, 404125, 824415, 1212375, 1374025, 4122075, 6870125, 20610375]

約数ペア:

[(1, 20610375), (3, 6870125), (5, 4122075), (15, 1374025), (17, 1212375), (25, 824415), (51, 404125), (53, 388875), (61, 337875), (75, 274805), (85, 242475), (125, 164883), (159, 129625), (183, 112625), (255, 80825), (265, 77775), (305, 67575), (375, 54961), (425, 48495), (795, 25925), (901, 22875), (915, 22525), (1037, 19875), (1275, 16165), (1325, 15555), (1525, 13515), (2125, 9699), (2703, 7625), (3111, 6625), (3233, 6375), (3975, 5185), (4505, 4575)]