20008950

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:390

約数の個数: 96

約数和(自身を含む): 55329792

約数和(自身を除く): 35320842

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 31, 39, 50, 62, 65, 75, 78, 93, 130, 150, 155, 186, 195, 310, 325, 331, 390, 403, 465, 650, 662, 775, 806, 930, 975, 993, 1209, 1550, 1655, 1950, 1986, 2015, 2325, 2418, 3310, 4030, 4303, 4650, 4965, 6045, 8275, 8606, 9930, 10075, 10261, 12090, 12909, 16550, 20150, 20522, 21515, 24825, 25818, 30225, 30783, 43030, 49650, 51305, 60450, 61566, 64545, 102610, 107575, 129090, 133393, 153915, 215150, 256525, 266786, 307830, 322725, 400179, 513050, 645450, 666965, 769575, 800358, 1333930, 1539150, 2000895, 3334825, 4001790, 6669650, 10004475, 20008950]

約数ペア:

[(1, 20008950), (2, 10004475), (3, 6669650), (5, 4001790), (6, 3334825), (10, 2000895), (13, 1539150), (15, 1333930), (25, 800358), (26, 769575), (30, 666965), (31, 645450), (39, 513050), (50, 400179), (62, 322725), (65, 307830), (75, 266786), (78, 256525), (93, 215150), (130, 153915), (150, 133393), (155, 129090), (186, 107575), (195, 102610), (310, 64545), (325, 61566), (331, 60450), (390, 51305), (403, 49650), (465, 43030), (650, 30783), (662, 30225), (775, 25818), (806, 24825), (930, 21515), (975, 20522), (993, 20150), (1209, 16550), (1550, 12909), (1655, 12090), (1950, 10261), (1986, 10075), (2015, 9930), (2325, 8606), (2418, 8275), (3310, 6045), (4030, 4965), (4303, 4650)]