19400565580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{178873}}^1$

素因数の和:178939

約数の個数: 96

約数和(自身を含む): 48682347840

約数和(自身を除く): 29281782260

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 29, 34, 44, 55, 58, 68, 85, 110, 116, 145, 170, 187, 220, 290, 319, 340, 374, 493, 580, 638, 748, 935, 986, 1276, 1595, 1870, 1972, 2465, 3190, 3740, 4930, 5423, 6380, 9860, 10846, 21692, 27115, 54230, 108460, 178873, 357746, 715492, 894365, 1788730, 1967603, 3040841, 3577460, 3935206, 5187317, 6081682, 7870412, 9838015, 10374634, 12163364, 15204205, 19676030, 20749268, 25936585, 30408410, 33449251, 39352060, 51873170, 57060487, 60816820, 66898502, 88184389, 103746340, 114120974, 133797004, 167246255, 176368778, 228241948, 285302435, 334492510, 352737556, 440921945, 570604870, 668985020, 881843890, 970028279, 1141209740, 1763687780, 1940056558, 3880113116, 4850141395, 9700282790, 19400565580]

約数ペア:

[(1, 19400565580), (2, 9700282790), (4, 4850141395), (5, 3880113116), (10, 1940056558), (11, 1763687780), (17, 1141209740), (20, 970028279), (22, 881843890), (29, 668985020), (34, 570604870), (44, 440921945), (55, 352737556), (58, 334492510), (68, 285302435), (85, 228241948), (110, 176368778), (116, 167246255), (145, 133797004), (170, 114120974), (187, 103746340), (220, 88184389), (290, 66898502), (319, 60816820), (340, 57060487), (374, 51873170), (493, 39352060), (580, 33449251), (638, 30408410), (748, 25936585), (935, 20749268), (986, 19676030), (1276, 15204205), (1595, 12163364), (1870, 10374634), (1972, 9838015), (2465, 7870412), (3190, 6081682), (3740, 5187317), (4930, 3935206), (5423, 3577460), (6380, 3040841), (9860, 1967603), (10846, 1788730), (21692, 894365), (27115, 715492), (54230, 357746), (108460, 178873)]