1820565560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{217771}}^1$

素因数の和:217812

約数の個数: 64

約数和(自身を含む): 4703875200

約数和(自身を除く): 2883309640

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 110, 152, 190, 209, 220, 380, 418, 440, 760, 836, 1045, 1672, 2090, 4180, 8360, 217771, 435542, 871084, 1088855, 1742168, 2177710, 2395481, 4137649, 4355420, 4790962, 8275298, 8710840, 9581924, 11977405, 16550596, 19163848, 20688245, 23954810, 33101192, 41376490, 45514139, 47909620, 82752980, 91028278, 95819240, 165505960, 182056556, 227570695, 364113112, 455141390, 910282780, 1820565560]

約数ペア:

[(1, 1820565560), (2, 910282780), (4, 455141390), (5, 364113112), (8, 227570695), (10, 182056556), (11, 165505960), (19, 95819240), (20, 91028278), (22, 82752980), (38, 47909620), (40, 45514139), (44, 41376490), (55, 33101192), (76, 23954810), (88, 20688245), (95, 19163848), (110, 16550596), (152, 11977405), (190, 9581924), (209, 8710840), (220, 8275298), (380, 4790962), (418, 4355420), (440, 4137649), (760, 2395481), (836, 2177710), (1045, 1742168), (1672, 1088855), (2090, 871084), (4180, 435542), (8360, 217771)]