251013780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{22861}}^1$

素因数の和:22937

約数の個数: 72

約数和(自身を含む): 773924424

約数和(自身を除く): 522910644

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 90, 122, 180, 183, 244, 305, 366, 549, 610, 732, 915, 1098, 1220, 1830, 2196, 2745, 3660, 5490, 10980, 22861, 45722, 68583, 91444, 114305, 137166, 205749, 228610, 274332, 342915, 411498, 457220, 685830, 822996, 1028745, 1371660, 1394521, 2057490, 2789042, 4114980, 4183563, 5578084, 6972605, 8367126, 12550689, 13945210, 16734252, 20917815, 25101378, 27890420, 41835630, 50202756, 62753445, 83671260, 125506890, 251013780]

約数ペア:

[(1, 251013780), (2, 125506890), (3, 83671260), (4, 62753445), (5, 50202756), (6, 41835630), (9, 27890420), (10, 25101378), (12, 20917815), (15, 16734252), (18, 13945210), (20, 12550689), (30, 8367126), (36, 6972605), (45, 5578084), (60, 4183563), (61, 4114980), (90, 2789042), (122, 2057490), (180, 1394521), (183, 1371660), (244, 1028745), (305, 822996), (366, 685830), (549, 457220), (610, 411498), (732, 342915), (915, 274332), (1098, 228610), (1220, 205749), (1830, 137166), (2196, 114305), (2745, 91444), (3660, 68583), (5490, 45722), (10980, 22861)]