2019950802380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{367}}^1\times {\mathrm{644491}}^1$

素因数の和:644935

約数の個数: 96

約数和(自身を含む): 4940789102592

約数和(自身を除く): 2920838300212

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 367, 427, 610, 734, 854, 1220, 1468, 1708, 1835, 2135, 2569, 3670, 4270, 5138, 7340, 8540, 10276, 12845, 22387, 25690, 44774, 51380, 89548, 111935, 156709, 223870, 313418, 447740, 626836, 644491, 783545, 1288982, 1567090, 2577964, 3134180, 3222455, 4511437, 6444910, 9022874, 12889820, 18045748, 22557185, 39313951, 45114370, 78627902, 90228740, 157255804, 196569755, 236528197, 275197657, 393139510, 473056394, 550395314, 786279020, 946112788, 1100790628, 1182640985, 1375988285, 1655697379, 2365281970, 2751976570, 3311394758, 4730563940, 5503953140, 6622789516, 8278486895, 14428220017, 16556973790, 28856440034, 33113947580, 57712880068, 72141100085, 100997540119, 144282200170, 201995080238, 288564400340, 403990160476, 504987700595, 1009975401190, 2019950802380]

約数ペア:

[(1, 2019950802380), (2, 1009975401190), (4, 504987700595), (5, 403990160476), (7, 288564400340), (10, 201995080238), (14, 144282200170), (20, 100997540119), (28, 72141100085), (35, 57712880068), (61, 33113947580), (70, 28856440034), (122, 16556973790), (140, 14428220017), (244, 8278486895), (305, 6622789516), (367, 5503953140), (427, 4730563940), (610, 3311394758), (734, 2751976570), (854, 2365281970), (1220, 1655697379), (1468, 1375988285), (1708, 1182640985), (1835, 1100790628), (2135, 946112788), (2569, 786279020), (3670, 550395314), (4270, 473056394), (5138, 393139510), (7340, 275197657), (8540, 236528197), (10276, 196569755), (12845, 157255804), (22387, 90228740), (25690, 78627902), (44774, 45114370), (51380, 39313951), (89548, 22557185), (111935, 18045748), (156709, 12889820), (223870, 9022874), (313418, 6444910), (447740, 4511437), (626836, 3222455), (644491, 3134180), (783545, 2577964), (1288982, 1567090)]