202920975

素因数分解:

$3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{227}}^1$

素因数の和:409

約数の個数: 72

約数和(自身を含む): 380399760

約数和(自身を除く): 177478785

約数列:

[1, 3, 5, 9, 15, 25, 29, 45, 75, 87, 137, 145, 225, 227, 261, 411, 435, 681, 685, 725, 1135, 1233, 1305, 2043, 2055, 2175, 3405, 3425, 3973, 5675, 6165, 6525, 6583, 10215, 10275, 11919, 17025, 19749, 19865, 30825, 31099, 32915, 35757, 51075, 59247, 59595, 93297, 98745, 99325, 155495, 164575, 178785, 279891, 296235, 297975, 466485, 493725, 777475, 893925, 901871, 1399455, 1481175, 2332425, 2705613, 4509355, 6997275, 8116839, 13528065, 22546775, 40584195, 67640325, 202920975]

約数ペア:

[(1, 202920975), (3, 67640325), (5, 40584195), (9, 22546775), (15, 13528065), (25, 8116839), (29, 6997275), (45, 4509355), (75, 2705613), (87, 2332425), (137, 1481175), (145, 1399455), (225, 901871), (227, 893925), (261, 777475), (411, 493725), (435, 466485), (681, 297975), (685, 296235), (725, 279891), (1135, 178785), (1233, 164575), (1305, 155495), (2043, 99325), (2055, 98745), (2175, 93297), (3405, 59595), (3425, 59247), (3973, 51075), (5675, 35757), (6165, 32915), (6525, 31099), (6583, 30825), (10215, 19865), (10275, 19749), (11919, 17025)]