51645040

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{557}}^1$

素因数の和:650

約数の個数: 80

約数和(自身を含む): 128697120

約数和(自身を除く): 77052080

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 61, 76, 80, 95, 122, 152, 190, 244, 304, 305, 380, 488, 557, 610, 760, 976, 1114, 1159, 1220, 1520, 2228, 2318, 2440, 2785, 4456, 4636, 4880, 5570, 5795, 8912, 9272, 10583, 11140, 11590, 18544, 21166, 22280, 23180, 33977, 42332, 44560, 46360, 52915, 67954, 84664, 92720, 105830, 135908, 169328, 169885, 211660, 271816, 339770, 423320, 543632, 645563, 679540, 846640, 1291126, 1359080, 2582252, 2718160, 3227815, 5164504, 6455630, 10329008, 12911260, 25822520, 51645040]

約数ペア:

[(1, 51645040), (2, 25822520), (4, 12911260), (5, 10329008), (8, 6455630), (10, 5164504), (16, 3227815), (19, 2718160), (20, 2582252), (38, 1359080), (40, 1291126), (61, 846640), (76, 679540), (80, 645563), (95, 543632), (122, 423320), (152, 339770), (190, 271816), (244, 211660), (304, 169885), (305, 169328), (380, 135908), (488, 105830), (557, 92720), (610, 84664), (760, 67954), (976, 52915), (1114, 46360), (1159, 44560), (1220, 42332), (1520, 33977), (2228, 23180), (2318, 22280), (2440, 21166), (2785, 18544), (4456, 11590), (4636, 11140), (4880, 10583), (5570, 9272), (5795, 8912)]