820290460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1$

素因数の和:332

約数の個数: 144

約数和(自身を含む): 2033482752

約数和(自身を除く): 1213192292

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 121, 127, 157, 170, 187, 220, 242, 254, 314, 340, 374, 484, 508, 605, 628, 635, 748, 785, 935, 1210, 1270, 1397, 1570, 1727, 1870, 2057, 2159, 2420, 2540, 2669, 2794, 3140, 3454, 3740, 4114, 4318, 5338, 5588, 6908, 6985, 8228, 8635, 8636, 10285, 10676, 10795, 13345, 13970, 15367, 17270, 18997, 19939, 20570, 21590, 23749, 26690, 27940, 29359, 30734, 34540, 37994, 39878, 41140, 43180, 47498, 53380, 58718, 61468, 75988, 76835, 79756, 94985, 94996, 99695, 117436, 118745, 146795, 153670, 189970, 199390, 219329, 237490, 261239, 293590, 307340, 322949, 338963, 379940, 398780, 438658, 474980, 522478, 587180, 645898, 677926, 877316, 1044956, 1096645, 1291796, 1306195, 1355852, 1614745, 1694815, 2193290, 2412619, 2612390, 3229490, 3389630, 3728593, 4386580, 4825238, 5224780, 6458980, 6779260, 7457186, 9650476, 12063095, 14914372, 18642965, 24126190, 37285930, 41014523, 48252380, 74571860, 82029046, 164058092, 205072615, 410145230, 820290460]

約数ペア:

[(1, 820290460), (2, 410145230), (4, 205072615), (5, 164058092), (10, 82029046), (11, 74571860), (17, 48252380), (20, 41014523), (22, 37285930), (34, 24126190), (44, 18642965), (55, 14914372), (68, 12063095), (85, 9650476), (110, 7457186), (121, 6779260), (127, 6458980), (157, 5224780), (170, 4825238), (187, 4386580), (220, 3728593), (242, 3389630), (254, 3229490), (314, 2612390), (340, 2412619), (374, 2193290), (484, 1694815), (508, 1614745), (605, 1355852), (628, 1306195), (635, 1291796), (748, 1096645), (785, 1044956), (935, 877316), (1210, 677926), (1270, 645898), (1397, 587180), (1570, 522478), (1727, 474980), (1870, 438658), (2057, 398780), (2159, 379940), (2420, 338963), (2540, 322949), (2669, 307340), (2794, 293590), (3140, 261239), (3454, 237490), (3740, 219329), (4114, 199390), (4318, 189970), (5338, 153670), (5588, 146795), (6908, 118745), (6985, 117436), (8228, 99695), (8635, 94996), (8636, 94985), (10285, 79756), (10676, 76835), (10795, 75988), (13345, 61468), (13970, 58718), (15367, 53380), (17270, 47498), (18997, 43180), (19939, 41140), (20570, 39878), (21590, 37994), (23749, 34540), (26690, 30734), (27940, 29359)]