781984140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{13999}}^1$

素因数の和:14044

約数の個数: 144

約数和(自身を含む): 2681280000

約数和(自身を除く): 1899295860

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 49, 57, 60, 70, 76, 84, 95, 98, 105, 114, 133, 140, 147, 190, 196, 210, 228, 245, 266, 285, 294, 380, 399, 420, 490, 532, 570, 588, 665, 735, 798, 931, 980, 1140, 1330, 1470, 1596, 1862, 1995, 2660, 2793, 2940, 3724, 3990, 4655, 5586, 7980, 9310, 11172, 13965, 13999, 18620, 27930, 27998, 41997, 55860, 55996, 69995, 83994, 97993, 139990, 167988, 195986, 209985, 265981, 279980, 293979, 391972, 419970, 489965, 531962, 587958, 685951, 797943, 839940, 979930, 1063924, 1175916, 1329905, 1371902, 1469895, 1595886, 1861867, 1959860, 2057853, 2659810, 2743804, 2939790, 3191772, 3429755, 3723734, 3989715, 4115706, 5319620, 5585601, 5879580, 6859510, 7447468, 7979430, 8231412, 9309335, 10289265, 11171202, 13033069, 13719020, 15958860, 18618670, 20578530, 22342404, 26066138, 27928005, 37237340, 39099207, 41157060, 52132276, 55856010, 65165345, 78198414, 111712020, 130330690, 156396828, 195496035, 260661380, 390992070, 781984140]

約数ペア:

[(1, 781984140), (2, 390992070), (3, 260661380), (4, 195496035), (5, 156396828), (6, 130330690), (7, 111712020), (10, 78198414), (12, 65165345), (14, 55856010), (15, 52132276), (19, 41157060), (20, 39099207), (21, 37237340), (28, 27928005), (30, 26066138), (35, 22342404), (38, 20578530), (42, 18618670), (49, 15958860), (57, 13719020), (60, 13033069), (70, 11171202), (76, 10289265), (84, 9309335), (95, 8231412), (98, 7979430), (105, 7447468), (114, 6859510), (133, 5879580), (140, 5585601), (147, 5319620), (190, 4115706), (196, 3989715), (210, 3723734), (228, 3429755), (245, 3191772), (266, 2939790), (285, 2743804), (294, 2659810), (380, 2057853), (399, 1959860), (420, 1861867), (490, 1595886), (532, 1469895), (570, 1371902), (588, 1329905), (665, 1175916), (735, 1063924), (798, 979930), (931, 839940), (980, 797943), (1140, 685951), (1330, 587958), (1470, 531962), (1596, 489965), (1862, 419970), (1995, 391972), (2660, 293979), (2793, 279980), (2940, 265981), (3724, 209985), (3990, 195986), (4655, 167988), (5586, 139990), (7980, 97993), (9310, 83994), (11172, 69995), (13965, 55996), (13999, 55860), (18620, 41997), (27930, 27998)]