18859425

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^2$

素因数の和:107

約数の個数: 72

約数和(自身を含む): 36289344

約数和(自身を除く): 17429919

約数列:

[1, 3, 5, 13, 15, 23, 25, 29, 39, 65, 69, 75, 87, 115, 145, 195, 299, 325, 345, 377, 435, 575, 667, 725, 841, 897, 975, 1131, 1495, 1725, 1885, 2001, 2175, 2523, 3335, 4205, 4485, 5655, 7475, 8671, 9425, 10005, 10933, 12615, 16675, 19343, 21025, 22425, 26013, 28275, 32799, 43355, 50025, 54665, 58029, 63075, 96715, 130065, 163995, 216775, 251459, 273325, 290145, 483575, 650325, 754377, 819975, 1257295, 1450725, 3771885, 6286475, 18859425]

約数ペア:

[(1, 18859425), (3, 6286475), (5, 3771885), (13, 1450725), (15, 1257295), (23, 819975), (25, 754377), (29, 650325), (39, 483575), (65, 290145), (69, 273325), (75, 251459), (87, 216775), (115, 163995), (145, 130065), (195, 96715), (299, 63075), (325, 58029), (345, 54665), (377, 50025), (435, 43355), (575, 32799), (667, 28275), (725, 26013), (841, 22425), (897, 21025), (975, 19343), (1131, 16675), (1495, 12615), (1725, 10933), (1885, 10005), (2001, 9425), (2175, 8671), (2523, 7475), (3335, 5655), (4205, 4485)]