21535072250

素因数分解:

$2^1\times 5^3\times {\mathrm{31}}^1\times {\mathrm{1471}}^1\times {\mathrm{1889}}^1$

素因数の和:3408

約数の個数: 64

約数和(自身を含む): 41664430080

約数和(自身を除く): 20129357830

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 125, 155, 250, 310, 775, 1471, 1550, 1889, 2942, 3778, 3875, 7355, 7750, 9445, 14710, 18890, 36775, 45601, 47225, 58559, 73550, 91202, 94450, 117118, 183875, 228005, 236125, 292795, 367750, 456010, 472250, 585590, 1140025, 1463975, 2280050, 2778719, 2927950, 5557438, 5700125, 7319875, 11400250, 13893595, 14639750, 27787190, 69467975, 86140289, 138935950, 172280578, 347339875, 430701445, 694679750, 861402890, 2153507225, 4307014450, 10767536125, 21535072250]

約数ペア:

[(1, 21535072250), (2, 10767536125), (5, 4307014450), (10, 2153507225), (25, 861402890), (31, 694679750), (50, 430701445), (62, 347339875), (125, 172280578), (155, 138935950), (250, 86140289), (310, 69467975), (775, 27787190), (1471, 14639750), (1550, 13893595), (1889, 11400250), (2942, 7319875), (3778, 5700125), (3875, 5557438), (7355, 2927950), (7750, 2778719), (9445, 2280050), (14710, 1463975), (18890, 1140025), (36775, 585590), (45601, 472250), (47225, 456010), (58559, 367750), (73550, 292795), (91202, 236125), (94450, 228005), (117118, 183875)]