2018278520

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1\times {\mathrm{239}}^1$

素因数の和:477

約数の個数: 128

約数和(自身を含む): 4864665600

約数和(自身を除く): 2846387080

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 67, 92, 115, 134, 137, 184, 230, 239, 268, 274, 335, 460, 478, 536, 548, 670, 685, 920, 956, 1096, 1195, 1340, 1370, 1541, 1912, 2390, 2680, 2740, 3082, 3151, 4780, 5480, 5497, 6164, 6302, 7705, 9179, 9560, 10994, 12328, 12604, 15410, 15755, 16013, 18358, 21988, 25208, 27485, 30820, 31510, 32026, 32743, 36716, 43976, 45895, 54970, 61640, 63020, 64052, 65486, 73432, 80065, 91790, 109940, 126040, 128104, 130972, 160130, 163715, 183580, 211117, 219880, 261944, 320260, 327430, 367160, 368299, 422234, 640520, 654860, 736598, 753089, 844468, 1055585, 1309720, 1473196, 1506178, 1688936, 1841495, 2111170, 2193781, 2946392, 3012356, 3682990, 3765445, 4222340, 4387562, 6024712, 7365980, 7530890, 8444680, 8775124, 10968905, 14731960, 15061780, 17550248, 21937810, 30123560, 43875620, 50456963, 87751240, 100913926, 201827852, 252284815, 403655704, 504569630, 1009139260, 2018278520]

約数ペア:

[(1, 2018278520), (2, 1009139260), (4, 504569630), (5, 403655704), (8, 252284815), (10, 201827852), (20, 100913926), (23, 87751240), (40, 50456963), (46, 43875620), (67, 30123560), (92, 21937810), (115, 17550248), (134, 15061780), (137, 14731960), (184, 10968905), (230, 8775124), (239, 8444680), (268, 7530890), (274, 7365980), (335, 6024712), (460, 4387562), (478, 4222340), (536, 3765445), (548, 3682990), (670, 3012356), (685, 2946392), (920, 2193781), (956, 2111170), (1096, 1841495), (1195, 1688936), (1340, 1506178), (1370, 1473196), (1541, 1309720), (1912, 1055585), (2390, 844468), (2680, 753089), (2740, 736598), (3082, 654860), (3151, 640520), (4780, 422234), (5480, 368299), (5497, 367160), (6164, 327430), (6302, 320260), (7705, 261944), (9179, 219880), (9560, 211117), (10994, 183580), (12328, 163715), (12604, 160130), (15410, 130972), (15755, 128104), (16013, 126040), (18358, 109940), (21988, 91790), (25208, 80065), (27485, 73432), (30820, 65486), (31510, 64052), (32026, 63020), (32743, 61640), (36716, 54970), (43976, 45895)]