61997000

素因数分解:

$2^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1$

素因数の和:304

約数の個数: 128

約数和(自身を含む): 165110400

約数和(自身を除く): 103113400

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 25, 26, 38, 40, 50, 52, 65, 76, 95, 100, 104, 125, 130, 152, 190, 200, 247, 250, 251, 260, 325, 380, 475, 494, 500, 502, 520, 650, 760, 950, 988, 1000, 1004, 1235, 1255, 1300, 1625, 1900, 1976, 2008, 2375, 2470, 2510, 2600, 3250, 3263, 3800, 4750, 4769, 4940, 5020, 6175, 6275, 6500, 6526, 9500, 9538, 9880, 10040, 12350, 12550, 13000, 13052, 16315, 19000, 19076, 23845, 24700, 25100, 26104, 30875, 31375, 32630, 38152, 47690, 49400, 50200, 61750, 61997, 62750, 65260, 81575, 95380, 119225, 123500, 123994, 125500, 130520, 163150, 190760, 238450, 247000, 247988, 251000, 309985, 326300, 407875, 476900, 495976, 596125, 619970, 652600, 815750, 953800, 1192250, 1239940, 1549925, 1631500, 2384500, 2479880, 3099850, 3263000, 4769000, 6199700, 7749625, 12399400, 15499250, 30998500, 61997000]

約数ペア:

[(1, 61997000), (2, 30998500), (4, 15499250), (5, 12399400), (8, 7749625), (10, 6199700), (13, 4769000), (19, 3263000), (20, 3099850), (25, 2479880), (26, 2384500), (38, 1631500), (40, 1549925), (50, 1239940), (52, 1192250), (65, 953800), (76, 815750), (95, 652600), (100, 619970), (104, 596125), (125, 495976), (130, 476900), (152, 407875), (190, 326300), (200, 309985), (247, 251000), (250, 247988), (251, 247000), (260, 238450), (325, 190760), (380, 163150), (475, 130520), (494, 125500), (500, 123994), (502, 123500), (520, 119225), (650, 95380), (760, 81575), (950, 65260), (988, 62750), (1000, 61997), (1004, 61750), (1235, 50200), (1255, 49400), (1300, 47690), (1625, 38152), (1900, 32630), (1976, 31375), (2008, 30875), (2375, 26104), (2470, 25100), (2510, 24700), (2600, 23845), (3250, 19076), (3263, 19000), (3800, 16315), (4750, 13052), (4769, 13000), (4940, 12550), (5020, 12350), (6175, 10040), (6275, 9880), (6500, 9538), (6526, 9500)]