402560

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1$

素因数の和:73

約数の個数: 64

約数和(自身を含む): 1046520

約数和(自身を除く): 643960

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 37, 40, 64, 68, 74, 80, 85, 128, 136, 148, 160, 170, 185, 272, 296, 320, 340, 370, 544, 592, 629, 640, 680, 740, 1088, 1184, 1258, 1360, 1480, 2176, 2368, 2516, 2720, 2960, 3145, 4736, 5032, 5440, 5920, 6290, 10064, 10880, 11840, 12580, 20128, 23680, 25160, 40256, 50320, 80512, 100640, 201280, 402560]

約数ペア:

[(1, 402560), (2, 201280), (4, 100640), (5, 80512), (8, 50320), (10, 40256), (16, 25160), (17, 23680), (20, 20128), (32, 12580), (34, 11840), (37, 10880), (40, 10064), (64, 6290), (68, 5920), (74, 5440), (80, 5032), (85, 4736), (128, 3145), (136, 2960), (148, 2720), (160, 2516), (170, 2368), (185, 2176), (272, 1480), (296, 1360), (320, 1258), (340, 1184), (370, 1088), (544, 740), (592, 680), (629, 640)]