90350720

素因数分解:

$2^7\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1787}}^1$

素因数の和:1885

約数の個数: 64

約数和(自身を含む): 218851200

約数和(自身を除く): 128500480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 158, 160, 316, 320, 395, 632, 640, 790, 1264, 1580, 1787, 2528, 3160, 3574, 5056, 6320, 7148, 8935, 10112, 12640, 14296, 17870, 25280, 28592, 35740, 50560, 57184, 71480, 114368, 141173, 142960, 228736, 282346, 285920, 564692, 571840, 705865, 1129384, 1143680, 1411730, 2258768, 2823460, 4517536, 5646920, 9035072, 11293840, 18070144, 22587680, 45175360, 90350720]

約数ペア:

[(1, 90350720), (2, 45175360), (4, 22587680), (5, 18070144), (8, 11293840), (10, 9035072), (16, 5646920), (20, 4517536), (32, 2823460), (40, 2258768), (64, 1411730), (79, 1143680), (80, 1129384), (128, 705865), (158, 571840), (160, 564692), (316, 285920), (320, 282346), (395, 228736), (632, 142960), (640, 141173), (790, 114368), (1264, 71480), (1580, 57184), (1787, 50560), (2528, 35740), (3160, 28592), (3574, 25280), (5056, 17870), (6320, 14296), (7148, 12640), (8935, 10112)]