51459980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{947}}^1$

素因数の和:999

約数の個数: 96

約数和(自身を含む): 133781760

約数和(自身を除く): 82321780

約数列:

[1, 2, 4, 5, 10, 11, 13, 19, 20, 22, 26, 38, 44, 52, 55, 65, 76, 95, 110, 130, 143, 190, 209, 220, 247, 260, 286, 380, 418, 494, 572, 715, 836, 947, 988, 1045, 1235, 1430, 1894, 2090, 2470, 2717, 2860, 3788, 4180, 4735, 4940, 5434, 9470, 10417, 10868, 12311, 13585, 17993, 18940, 20834, 24622, 27170, 35986, 41668, 49244, 52085, 54340, 61555, 71972, 89965, 104170, 123110, 135421, 179930, 197923, 208340, 233909, 246220, 270842, 359860, 395846, 467818, 541684, 677105, 791692, 935636, 989615, 1169545, 1354210, 1979230, 2339090, 2572999, 2708420, 3958460, 4678180, 5145998, 10291996, 12864995, 25729990, 51459980]

約数ペア:

[(1, 51459980), (2, 25729990), (4, 12864995), (5, 10291996), (10, 5145998), (11, 4678180), (13, 3958460), (19, 2708420), (20, 2572999), (22, 2339090), (26, 1979230), (38, 1354210), (44, 1169545), (52, 989615), (55, 935636), (65, 791692), (76, 677105), (95, 541684), (110, 467818), (130, 395846), (143, 359860), (190, 270842), (209, 246220), (220, 233909), (247, 208340), (260, 197923), (286, 179930), (380, 135421), (418, 123110), (494, 104170), (572, 89965), (715, 71972), (836, 61555), (947, 54340), (988, 52085), (1045, 49244), (1235, 41668), (1430, 35986), (1894, 27170), (2090, 24622), (2470, 20834), (2717, 18940), (2860, 17993), (3788, 13585), (4180, 12311), (4735, 10868), (4940, 10417), (5434, 9470)]