20302425

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{631}}^1$

素因数の和:671

約数の個数: 72

約数和(自身を含む): 42788928

約数和(自身を除く): 22486503

約数列:

[1, 3, 5, 9, 11, 13, 15, 25, 33, 39, 45, 55, 65, 75, 99, 117, 143, 165, 195, 225, 275, 325, 429, 495, 585, 631, 715, 825, 975, 1287, 1893, 2145, 2475, 2925, 3155, 3575, 5679, 6435, 6941, 8203, 9465, 10725, 15775, 20823, 24609, 28395, 32175, 34705, 41015, 47325, 62469, 73827, 90233, 104115, 123045, 141975, 173525, 205075, 270699, 312345, 369135, 451165, 520575, 615225, 812097, 1353495, 1561725, 1845675, 2255825, 4060485, 6767475, 20302425]

約数ペア:

[(1, 20302425), (3, 6767475), (5, 4060485), (9, 2255825), (11, 1845675), (13, 1561725), (15, 1353495), (25, 812097), (33, 615225), (39, 520575), (45, 451165), (55, 369135), (65, 312345), (75, 270699), (99, 205075), (117, 173525), (143, 141975), (165, 123045), (195, 104115), (225, 90233), (275, 73827), (325, 62469), (429, 47325), (495, 41015), (585, 34705), (631, 32175), (715, 28395), (825, 24609), (975, 20823), (1287, 15775), (1893, 10725), (2145, 9465), (2475, 8203), (2925, 6941), (3155, 6435), (3575, 5679)]