20783125900

素因数分解:

$2^2\times 5^2\times {\mathrm{181}}^1\times {\mathrm{331}}^1\times {\mathrm{3469}}^1$

素因数の和:3995

約数の個数: 72

約数和(自身を含む): 45498667760

約数和(自身を除く): 24715541860

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 181, 331, 362, 662, 724, 905, 1324, 1655, 1810, 3310, 3469, 3620, 4525, 6620, 6938, 8275, 9050, 13876, 16550, 17345, 18100, 33100, 34690, 59911, 69380, 86725, 119822, 173450, 239644, 299555, 346900, 599110, 627889, 1148239, 1198220, 1255778, 1497775, 2296478, 2511556, 2995550, 3139445, 4592956, 5741195, 5991100, 6278890, 11482390, 12557780, 15697225, 22964780, 28705975, 31394450, 57411950, 62788900, 114823900, 207831259, 415662518, 831325036, 1039156295, 2078312590, 4156625180, 5195781475, 10391562950, 20783125900]

約数ペア:

[(1, 20783125900), (2, 10391562950), (4, 5195781475), (5, 4156625180), (10, 2078312590), (20, 1039156295), (25, 831325036), (50, 415662518), (100, 207831259), (181, 114823900), (331, 62788900), (362, 57411950), (662, 31394450), (724, 28705975), (905, 22964780), (1324, 15697225), (1655, 12557780), (1810, 11482390), (3310, 6278890), (3469, 5991100), (3620, 5741195), (4525, 4592956), (6620, 3139445), (6938, 2995550), (8275, 2511556), (9050, 2296478), (13876, 1497775), (16550, 1255778), (17345, 1198220), (18100, 1148239), (33100, 627889), (34690, 599110), (59911, 346900), (69380, 299555), (86725, 239644), (119822, 173450)]