40209975

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{233}}^1$

素因数の和:321

約数の個数: 72

約数和(自身を含む): 79213680

約数和(自身を除く): 39003705

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 59, 65, 75, 117, 177, 195, 225, 233, 295, 325, 531, 585, 699, 767, 885, 975, 1165, 1475, 2097, 2301, 2655, 2925, 3029, 3495, 3835, 4425, 5825, 6903, 9087, 10485, 11505, 13275, 13747, 15145, 17475, 19175, 27261, 34515, 41241, 45435, 52425, 57525, 68735, 75725, 123723, 136305, 172575, 178711, 206205, 227175, 343675, 536133, 618615, 681525, 893555, 1031025, 1608399, 2680665, 3093075, 4467775, 8041995, 13403325, 40209975]

約数ペア:

[(1, 40209975), (3, 13403325), (5, 8041995), (9, 4467775), (13, 3093075), (15, 2680665), (25, 1608399), (39, 1031025), (45, 893555), (59, 681525), (65, 618615), (75, 536133), (117, 343675), (177, 227175), (195, 206205), (225, 178711), (233, 172575), (295, 136305), (325, 123723), (531, 75725), (585, 68735), (699, 57525), (767, 52425), (885, 45435), (975, 41241), (1165, 34515), (1475, 27261), (2097, 19175), (2301, 17475), (2655, 15145), (2925, 13747), (3029, 13275), (3495, 11505), (3835, 10485), (4425, 9087), (5825, 6903)]