221657625

素因数分解:

$3^2\times 5^3\times 7^2\times {\mathrm{4021}}^1$

素因数の和:4056

約数の個数: 72

約数和(自身を含む): 464927112

約数和(自身を除く): 243269487

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 49, 63, 75, 105, 125, 147, 175, 225, 245, 315, 375, 441, 525, 735, 875, 1125, 1225, 1575, 2205, 2625, 3675, 4021, 6125, 7875, 11025, 12063, 18375, 20105, 28147, 36189, 55125, 60315, 84441, 100525, 140735, 180945, 197029, 253323, 301575, 422205, 502625, 591087, 703675, 904725, 985145, 1266615, 1507875, 1773261, 2111025, 2955435, 3518375, 4523625, 4925725, 6333075, 8866305, 10555125, 14777175, 24628625, 31665375, 44331525, 73885875, 221657625]

約数ペア:

[(1, 221657625), (3, 73885875), (5, 44331525), (7, 31665375), (9, 24628625), (15, 14777175), (21, 10555125), (25, 8866305), (35, 6333075), (45, 4925725), (49, 4523625), (63, 3518375), (75, 2955435), (105, 2111025), (125, 1773261), (147, 1507875), (175, 1266615), (225, 985145), (245, 904725), (315, 703675), (375, 591087), (441, 502625), (525, 422205), (735, 301575), (875, 253323), (1125, 197029), (1225, 180945), (1575, 140735), (2205, 100525), (2625, 84441), (3675, 60315), (4021, 55125), (6125, 36189), (7875, 28147), (11025, 20105), (12063, 18375)]