68369920

素因数分解:

$2^9\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1571}}^1$

素因数の和:1611

約数の個数: 80

約数和(自身を含む): 173680848

約数和(自身を除く): 105310928

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 256, 272, 320, 340, 512, 544, 640, 680, 1088, 1280, 1360, 1571, 2176, 2560, 2720, 3142, 4352, 5440, 6284, 7855, 8704, 10880, 12568, 15710, 21760, 25136, 26707, 31420, 43520, 50272, 53414, 62840, 100544, 106828, 125680, 133535, 201088, 213656, 251360, 267070, 402176, 427312, 502720, 534140, 804352, 854624, 1005440, 1068280, 1709248, 2010880, 2136560, 3418496, 4021760, 4273120, 6836992, 8546240, 13673984, 17092480, 34184960, 68369920]

約数ペア:

[(1, 68369920), (2, 34184960), (4, 17092480), (5, 13673984), (8, 8546240), (10, 6836992), (16, 4273120), (17, 4021760), (20, 3418496), (32, 2136560), (34, 2010880), (40, 1709248), (64, 1068280), (68, 1005440), (80, 854624), (85, 804352), (128, 534140), (136, 502720), (160, 427312), (170, 402176), (256, 267070), (272, 251360), (320, 213656), (340, 201088), (512, 133535), (544, 125680), (640, 106828), (680, 100544), (1088, 62840), (1280, 53414), (1360, 50272), (1571, 43520), (2176, 31420), (2560, 26707), (2720, 25136), (3142, 21760), (4352, 15710), (5440, 12568), (6284, 10880), (7855, 8704)]