402625280

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{18503}}^1$

素因数の和:18541

約数の個数: 72

約数和(自身を含む): 1021198752

約数和(自身を除く): 618573472

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, 544, 640, 680, 1088, 1280, 1360, 2176, 2720, 4352, 5440, 10880, 18503, 21760, 37006, 74012, 92515, 148024, 185030, 296048, 314551, 370060, 592096, 629102, 740120, 1184192, 1258204, 1480240, 1572755, 2368384, 2516408, 2960480, 3145510, 4736768, 5032816, 5920960, 6291020, 10065632, 11841920, 12582040, 20131264, 23683840, 25164080, 40262528, 50328160, 80525056, 100656320, 201312640, 402625280]

約数ペア:

[(1, 402625280), (2, 201312640), (4, 100656320), (5, 80525056), (8, 50328160), (10, 40262528), (16, 25164080), (17, 23683840), (20, 20131264), (32, 12582040), (34, 11841920), (40, 10065632), (64, 6291020), (68, 5920960), (80, 5032816), (85, 4736768), (128, 3145510), (136, 2960480), (160, 2516408), (170, 2368384), (256, 1572755), (272, 1480240), (320, 1258204), (340, 1184192), (544, 740120), (640, 629102), (680, 592096), (1088, 370060), (1280, 314551), (1360, 296048), (2176, 185030), (2720, 148024), (4352, 92515), (5440, 74012), (10880, 37006), (18503, 21760)]