84538220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1$

素因数の和:307

約数の個数: 96

約数和(自身を含む): 204388800

約数和(自身を除く): 119850580

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 109, 130, 157, 190, 218, 247, 260, 314, 380, 436, 494, 545, 628, 785, 988, 1090, 1235, 1417, 1570, 2041, 2071, 2180, 2470, 2834, 2983, 3140, 4082, 4142, 4940, 5668, 5966, 7085, 8164, 8284, 10205, 10355, 11932, 14170, 14915, 17113, 20410, 20710, 26923, 28340, 29830, 34226, 38779, 40820, 41420, 53846, 59660, 68452, 77558, 85565, 107692, 134615, 155116, 171130, 193895, 222469, 269230, 325147, 342260, 387790, 444938, 538460, 650294, 775580, 889876, 1112345, 1300588, 1625735, 2224690, 3251470, 4226911, 4449380, 6502940, 8453822, 16907644, 21134555, 42269110, 84538220]

約数ペア:

[(1, 84538220), (2, 42269110), (4, 21134555), (5, 16907644), (10, 8453822), (13, 6502940), (19, 4449380), (20, 4226911), (26, 3251470), (38, 2224690), (52, 1625735), (65, 1300588), (76, 1112345), (95, 889876), (109, 775580), (130, 650294), (157, 538460), (190, 444938), (218, 387790), (247, 342260), (260, 325147), (314, 269230), (380, 222469), (436, 193895), (494, 171130), (545, 155116), (628, 134615), (785, 107692), (988, 85565), (1090, 77558), (1235, 68452), (1417, 59660), (1570, 53846), (2041, 41420), (2071, 40820), (2180, 38779), (2470, 34226), (2834, 29830), (2983, 28340), (3140, 26923), (4082, 20710), (4142, 20410), (4940, 17113), (5668, 14915), (5966, 14170), (7085, 11932), (8164, 10355), (8284, 10205)]