81476120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{97}}^1$

素因数の和:225

約数の個数: 128

約数和(自身を含む): 213373440

約数和(自身を除く): 131897320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 83, 88, 92, 97, 110, 115, 166, 184, 194, 220, 230, 253, 332, 388, 415, 440, 460, 485, 506, 664, 776, 830, 913, 920, 970, 1012, 1067, 1265, 1660, 1826, 1909, 1940, 2024, 2134, 2231, 2530, 3320, 3652, 3818, 3880, 4268, 4462, 4565, 5060, 5335, 7304, 7636, 8051, 8536, 8924, 9130, 9545, 10120, 10670, 11155, 15272, 16102, 17848, 18260, 19090, 20999, 21340, 22310, 24541, 32204, 36520, 38180, 40255, 41998, 42680, 44620, 49082, 64408, 76360, 80510, 83996, 88561, 89240, 98164, 104995, 122705, 161020, 167992, 177122, 185173, 196328, 209990, 245410, 322040, 354244, 370346, 419980, 442805, 490820, 708488, 740692, 839960, 885610, 925865, 981640, 1481384, 1771220, 1851730, 2036903, 3542440, 3703460, 4073806, 7406920, 8147612, 10184515, 16295224, 20369030, 40738060, 81476120]

約数ペア:

[(1, 81476120), (2, 40738060), (4, 20369030), (5, 16295224), (8, 10184515), (10, 8147612), (11, 7406920), (20, 4073806), (22, 3703460), (23, 3542440), (40, 2036903), (44, 1851730), (46, 1771220), (55, 1481384), (83, 981640), (88, 925865), (92, 885610), (97, 839960), (110, 740692), (115, 708488), (166, 490820), (184, 442805), (194, 419980), (220, 370346), (230, 354244), (253, 322040), (332, 245410), (388, 209990), (415, 196328), (440, 185173), (460, 177122), (485, 167992), (506, 161020), (664, 122705), (776, 104995), (830, 98164), (913, 89240), (920, 88561), (970, 83996), (1012, 80510), (1067, 76360), (1265, 64408), (1660, 49082), (1826, 44620), (1909, 42680), (1940, 41998), (2024, 40255), (2134, 38180), (2231, 36520), (2530, 32204), (3320, 24541), (3652, 22310), (3818, 21340), (3880, 20999), (4268, 19090), (4462, 18260), (4565, 17848), (5060, 16102), (5335, 15272), (7304, 11155), (7636, 10670), (8051, 10120), (8536, 9545), (8924, 9130)]