100785920

素因数分解:

$2^8\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1109}}^1$

素因数の和:1201

約数の個数: 72

約数和(自身を含む): 245034720

約数和(自身を除く): 144248800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 128, 142, 160, 256, 284, 320, 355, 568, 640, 710, 1109, 1136, 1280, 1420, 2218, 2272, 2840, 4436, 4544, 5545, 5680, 8872, 9088, 11090, 11360, 17744, 18176, 22180, 22720, 35488, 44360, 45440, 70976, 78739, 88720, 90880, 141952, 157478, 177440, 283904, 314956, 354880, 393695, 629912, 709760, 787390, 1259824, 1419520, 1574780, 2519648, 3149560, 5039296, 6299120, 10078592, 12598240, 20157184, 25196480, 50392960, 100785920]

約数ペア:

[(1, 100785920), (2, 50392960), (4, 25196480), (5, 20157184), (8, 12598240), (10, 10078592), (16, 6299120), (20, 5039296), (32, 3149560), (40, 2519648), (64, 1574780), (71, 1419520), (80, 1259824), (128, 787390), (142, 709760), (160, 629912), (256, 393695), (284, 354880), (320, 314956), (355, 283904), (568, 177440), (640, 157478), (710, 141952), (1109, 90880), (1136, 88720), (1280, 78739), (1420, 70976), (2218, 45440), (2272, 44360), (2840, 35488), (4436, 22720), (4544, 22180), (5545, 18176), (5680, 17744), (8872, 11360), (9088, 11090)]