42157640

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{157}}^1$

素因数の和:319

約数の個数: 96

約数和(自身を含む): 111854520

約数和(自身を除く): 69696880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 137, 140, 157, 196, 245, 274, 280, 314, 392, 490, 548, 628, 685, 785, 959, 980, 1096, 1099, 1256, 1370, 1570, 1918, 1960, 2198, 2740, 3140, 3836, 4396, 4795, 5480, 5495, 6280, 6713, 7672, 7693, 8792, 9590, 10990, 13426, 15386, 19180, 21509, 21980, 26852, 30772, 33565, 38360, 38465, 43018, 43960, 53704, 61544, 67130, 76930, 86036, 107545, 134260, 150563, 153860, 172072, 215090, 268520, 301126, 307720, 430180, 602252, 752815, 860360, 1053941, 1204504, 1505630, 2107882, 3011260, 4215764, 5269705, 6022520, 8431528, 10539410, 21078820, 42157640]

約数ペア:

[(1, 42157640), (2, 21078820), (4, 10539410), (5, 8431528), (7, 6022520), (8, 5269705), (10, 4215764), (14, 3011260), (20, 2107882), (28, 1505630), (35, 1204504), (40, 1053941), (49, 860360), (56, 752815), (70, 602252), (98, 430180), (137, 307720), (140, 301126), (157, 268520), (196, 215090), (245, 172072), (274, 153860), (280, 150563), (314, 134260), (392, 107545), (490, 86036), (548, 76930), (628, 67130), (685, 61544), (785, 53704), (959, 43960), (980, 43018), (1096, 38465), (1099, 38360), (1256, 33565), (1370, 30772), (1570, 26852), (1918, 21980), (1960, 21509), (2198, 19180), (2740, 15386), (3140, 13426), (3836, 10990), (4396, 9590), (4795, 8792), (5480, 7693), (5495, 7672), (6280, 6713)]