389968220

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:156

約数の個数: 144

約数和(自身を含む): 936472320

約数和(自身を除く): 546504100

約数列:

[1, 2, 4, 5, 10, 20, 23, 29, 31, 41, 46, 58, 62, 82, 92, 115, 116, 124, 145, 155, 164, 205, 230, 290, 310, 410, 460, 529, 580, 620, 667, 713, 820, 899, 943, 1058, 1189, 1271, 1334, 1426, 1798, 1886, 2116, 2378, 2542, 2645, 2668, 2852, 3335, 3565, 3596, 3772, 4495, 4715, 4756, 5084, 5290, 5945, 6355, 6670, 7130, 8990, 9430, 10580, 11890, 12710, 13340, 14260, 15341, 16399, 17980, 18860, 20677, 21689, 23780, 25420, 27347, 29233, 30682, 32798, 36859, 41354, 43378, 54694, 58466, 61364, 65596, 73718, 76705, 81995, 82708, 86756, 103385, 108445, 109388, 116932, 136735, 146165, 147436, 153410, 163990, 184295, 206770, 216890, 273470, 292330, 306820, 327980, 368590, 413540, 433780, 475571, 546940, 584660, 628981, 672359, 737180, 847757, 951142, 1257962, 1344718, 1695514, 1902284, 2377855, 2515924, 2689436, 3144905, 3361795, 3391028, 4238785, 4755710, 6289810, 6723590, 8477570, 9511420, 12579620, 13447180, 16955140, 19498411, 38996822, 77993644, 97492055, 194984110, 389968220]

約数ペア:

[(1, 389968220), (2, 194984110), (4, 97492055), (5, 77993644), (10, 38996822), (20, 19498411), (23, 16955140), (29, 13447180), (31, 12579620), (41, 9511420), (46, 8477570), (58, 6723590), (62, 6289810), (82, 4755710), (92, 4238785), (115, 3391028), (116, 3361795), (124, 3144905), (145, 2689436), (155, 2515924), (164, 2377855), (205, 1902284), (230, 1695514), (290, 1344718), (310, 1257962), (410, 951142), (460, 847757), (529, 737180), (580, 672359), (620, 628981), (667, 584660), (713, 546940), (820, 475571), (899, 433780), (943, 413540), (1058, 368590), (1189, 327980), (1271, 306820), (1334, 292330), (1426, 273470), (1798, 216890), (1886, 206770), (2116, 184295), (2378, 163990), (2542, 153410), (2645, 147436), (2668, 146165), (2852, 136735), (3335, 116932), (3565, 109388), (3596, 108445), (3772, 103385), (4495, 86756), (4715, 82708), (4756, 81995), (5084, 76705), (5290, 73718), (5945, 65596), (6355, 61364), (6670, 58466), (7130, 54694), (8990, 43378), (9430, 41354), (10580, 36859), (11890, 32798), (12710, 30682), (13340, 29233), (14260, 27347), (15341, 25420), (16399, 23780), (17980, 21689), (18860, 20677)]