1218376425

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{17449}}^1$

素因数の和:17495

約数の個数: 72

約数和(自身を含む): 2466732000

約数和(自身を除く): 1248355575

約数列:

[1, 3, 5, 7, 15, 19, 21, 25, 35, 49, 57, 75, 95, 105, 133, 147, 175, 245, 285, 399, 475, 525, 665, 735, 931, 1225, 1425, 1995, 2793, 3325, 3675, 4655, 9975, 13965, 17449, 23275, 52347, 69825, 87245, 122143, 261735, 331531, 366429, 436225, 610715, 855001, 994593, 1308675, 1657655, 1832145, 2320717, 2565003, 3053575, 4275005, 4972965, 6962151, 8288275, 9160725, 11603585, 12825015, 16245019, 21375025, 24864825, 34810755, 48735057, 58017925, 64125075, 81225095, 174053775, 243675285, 406125475, 1218376425]

約数ペア:

[(1, 1218376425), (3, 406125475), (5, 243675285), (7, 174053775), (15, 81225095), (19, 64125075), (21, 58017925), (25, 48735057), (35, 34810755), (49, 24864825), (57, 21375025), (75, 16245019), (95, 12825015), (105, 11603585), (133, 9160725), (147, 8288275), (175, 6962151), (245, 4972965), (285, 4275005), (399, 3053575), (475, 2565003), (525, 2320717), (665, 1832145), (735, 1657655), (931, 1308675), (1225, 994593), (1425, 855001), (1995, 610715), (2793, 436225), (3325, 366429), (3675, 331531), (4655, 261735), (9975, 122143), (13965, 87245), (17449, 69825), (23275, 52347)]