8419425

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{79}}^1$

素因数の和:135

約数の個数: 72

約数和(自身を含む): 16963200

約数和(自身を除く): 8543775

約数列:

[1, 3, 5, 7, 15, 21, 25, 29, 35, 49, 75, 79, 87, 105, 145, 147, 175, 203, 237, 245, 395, 435, 525, 553, 609, 725, 735, 1015, 1185, 1225, 1421, 1659, 1975, 2175, 2291, 2765, 3045, 3675, 3871, 4263, 5075, 5925, 6873, 7105, 8295, 11455, 11613, 13825, 15225, 16037, 19355, 21315, 34365, 35525, 41475, 48111, 57275, 58065, 80185, 96775, 106575, 112259, 171825, 240555, 290325, 336777, 400925, 561295, 1202775, 1683885, 2806475, 8419425]

約数ペア:

[(1, 8419425), (3, 2806475), (5, 1683885), (7, 1202775), (15, 561295), (21, 400925), (25, 336777), (29, 290325), (35, 240555), (49, 171825), (75, 112259), (79, 106575), (87, 96775), (105, 80185), (145, 58065), (147, 57275), (175, 48111), (203, 41475), (237, 35525), (245, 34365), (395, 21315), (435, 19355), (525, 16037), (553, 15225), (609, 13825), (725, 11613), (735, 11455), (1015, 8295), (1185, 7105), (1225, 6873), (1421, 5925), (1659, 5075), (1975, 4263), (2175, 3871), (2291, 3675), (2765, 3045)]