20037472

素因数分解:

$2^5\times 7^2\times {\mathrm{13}}^1\times {\mathrm{983}}^1$

素因数の和:1020

約数の個数: 72

約数和(自身を含む): 49469616

約数和(自身を除く): 29432144

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 49, 52, 56, 91, 98, 104, 112, 182, 196, 208, 224, 364, 392, 416, 637, 728, 784, 983, 1274, 1456, 1568, 1966, 2548, 2912, 3932, 5096, 6881, 7864, 10192, 12779, 13762, 15728, 20384, 25558, 27524, 31456, 48167, 51116, 55048, 89453, 96334, 102232, 110096, 178906, 192668, 204464, 220192, 357812, 385336, 408928, 626171, 715624, 770672, 1252342, 1431248, 1541344, 2504684, 2862496, 5009368, 10018736, 20037472]

約数ペア:

[(1, 20037472), (2, 10018736), (4, 5009368), (7, 2862496), (8, 2504684), (13, 1541344), (14, 1431248), (16, 1252342), (26, 770672), (28, 715624), (32, 626171), (49, 408928), (52, 385336), (56, 357812), (91, 220192), (98, 204464), (104, 192668), (112, 178906), (182, 110096), (196, 102232), (208, 96334), (224, 89453), (364, 55048), (392, 51116), (416, 48167), (637, 31456), (728, 27524), (784, 25558), (983, 20384), (1274, 15728), (1456, 13762), (1568, 12779), (1966, 10192), (2548, 7864), (2912, 6881), (3932, 5096)]