90145280

素因数分解:

$2^9\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1531}}^1$

素因数の和:1577

約数の個数: 80

約数和(自身を含む): 225681984

約数和(自身を除く): 135536704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 256, 320, 368, 460, 512, 640, 736, 920, 1280, 1472, 1531, 1840, 2560, 2944, 3062, 3680, 5888, 6124, 7360, 7655, 11776, 12248, 14720, 15310, 24496, 29440, 30620, 35213, 48992, 58880, 61240, 70426, 97984, 122480, 140852, 176065, 195968, 244960, 281704, 352130, 391936, 489920, 563408, 704260, 783872, 979840, 1126816, 1408520, 1959680, 2253632, 2817040, 3919360, 4507264, 5634080, 9014528, 11268160, 18029056, 22536320, 45072640, 90145280]

約数ペア:

[(1, 90145280), (2, 45072640), (4, 22536320), (5, 18029056), (8, 11268160), (10, 9014528), (16, 5634080), (20, 4507264), (23, 3919360), (32, 2817040), (40, 2253632), (46, 1959680), (64, 1408520), (80, 1126816), (92, 979840), (115, 783872), (128, 704260), (160, 563408), (184, 489920), (230, 391936), (256, 352130), (320, 281704), (368, 244960), (460, 195968), (512, 176065), (640, 140852), (736, 122480), (920, 97984), (1280, 70426), (1472, 61240), (1531, 58880), (1840, 48992), (2560, 35213), (2944, 30620), (3062, 29440), (3680, 24496), (5888, 15310), (6124, 14720), (7360, 12248), (7655, 11776)]