1561556100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{929}}^1$

素因数の和:1390

約数の個数: 144

約数和(自身を含む): 4882187520

約数和(自身を除く): 3320631420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 195, 260, 300, 325, 390, 431, 650, 780, 862, 929, 975, 1293, 1300, 1724, 1858, 1950, 2155, 2586, 2787, 3716, 3900, 4310, 4645, 5172, 5574, 5603, 6465, 8620, 9290, 10775, 11148, 11206, 12077, 12930, 13935, 16809, 18580, 21550, 22412, 23225, 24154, 25860, 27870, 28015, 32325, 33618, 36231, 43100, 46450, 48308, 55740, 56030, 60385, 64650, 67236, 69675, 72462, 84045, 92900, 112060, 120770, 129300, 139350, 140075, 144924, 168090, 181155, 241540, 278700, 280150, 301925, 336180, 362310, 400399, 420225, 560300, 603850, 724620, 800798, 840450, 905775, 1201197, 1207700, 1601596, 1680900, 1811550, 2001995, 2402394, 3623100, 4003990, 4804788, 5205187, 6005985, 8007980, 10009975, 10410374, 12011970, 15615561, 20019950, 20820748, 24023940, 26025935, 30029925, 31231122, 40039900, 52051870, 60059850, 62462244, 78077805, 104103740, 120119700, 130129675, 156155610, 260259350, 312311220, 390389025, 520518700, 780778050, 1561556100]

約数ペア:

[(1, 1561556100), (2, 780778050), (3, 520518700), (4, 390389025), (5, 312311220), (6, 260259350), (10, 156155610), (12, 130129675), (13, 120119700), (15, 104103740), (20, 78077805), (25, 62462244), (26, 60059850), (30, 52051870), (39, 40039900), (50, 31231122), (52, 30029925), (60, 26025935), (65, 24023940), (75, 20820748), (78, 20019950), (100, 15615561), (130, 12011970), (150, 10410374), (156, 10009975), (195, 8007980), (260, 6005985), (300, 5205187), (325, 4804788), (390, 4003990), (431, 3623100), (650, 2402394), (780, 2001995), (862, 1811550), (929, 1680900), (975, 1601596), (1293, 1207700), (1300, 1201197), (1724, 905775), (1858, 840450), (1950, 800798), (2155, 724620), (2586, 603850), (2787, 560300), (3716, 420225), (3900, 400399), (4310, 362310), (4645, 336180), (5172, 301925), (5574, 280150), (5603, 278700), (6465, 241540), (8620, 181155), (9290, 168090), (10775, 144924), (11148, 140075), (11206, 139350), (12077, 129300), (12930, 120770), (13935, 112060), (16809, 92900), (18580, 84045), (21550, 72462), (22412, 69675), (23225, 67236), (24154, 64650), (25860, 60385), (27870, 56030), (28015, 55740), (32325, 48308), (33618, 46450), (36231, 43100)]