20794636240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{131213}}^1$

素因数の和:131516

約数の個数: 80

約数和(自身を含む): 55449986688

約数和(自身を除く): 34655350448

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 283, 560, 566, 1132, 1415, 1981, 2264, 2830, 3962, 4528, 5660, 7924, 9905, 11320, 15848, 19810, 22640, 31696, 39620, 79240, 131213, 158480, 262426, 524852, 656065, 918491, 1049704, 1312130, 1836982, 2099408, 2624260, 3673964, 4592455, 5248520, 7347928, 9184910, 10497040, 14695856, 18369820, 36739640, 37133279, 73479280, 74266558, 148533116, 185666395, 259932953, 297066232, 371332790, 519865906, 594132464, 742665580, 1039731812, 1299664765, 1485331160, 2079463624, 2599329530, 2970662320, 4158927248, 5198659060, 10397318120, 20794636240]

約数ペア:

[(1, 20794636240), (2, 10397318120), (4, 5198659060), (5, 4158927248), (7, 2970662320), (8, 2599329530), (10, 2079463624), (14, 1485331160), (16, 1299664765), (20, 1039731812), (28, 742665580), (35, 594132464), (40, 519865906), (56, 371332790), (70, 297066232), (80, 259932953), (112, 185666395), (140, 148533116), (280, 74266558), (283, 73479280), (560, 37133279), (566, 36739640), (1132, 18369820), (1415, 14695856), (1981, 10497040), (2264, 9184910), (2830, 7347928), (3962, 5248520), (4528, 4592455), (5660, 3673964), (7924, 2624260), (9905, 2099408), (11320, 1836982), (15848, 1312130), (19810, 1049704), (22640, 918491), (31696, 656065), (39620, 524852), (79240, 262426), (131213, 158480)]