1999788128

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1\times {\mathrm{457}}^1$

素因数の和:704

約数の個数: 96

約数和(自身を含む): 4340103264

約数和(自身を除く): 2340315136

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 67, 104, 134, 157, 208, 268, 314, 416, 457, 536, 628, 871, 914, 1072, 1256, 1742, 1828, 2041, 2144, 2512, 3484, 3656, 4082, 5024, 5941, 6968, 7312, 8164, 10519, 11882, 13936, 14624, 16328, 21038, 23764, 27872, 30619, 32656, 42076, 47528, 61238, 65312, 71749, 84152, 95056, 122476, 136747, 143498, 168304, 190112, 244952, 273494, 286996, 336608, 398047, 489904, 546988, 573992, 796094, 932737, 979808, 1093976, 1147984, 1592188, 1865474, 2187952, 2295968, 3184376, 3730948, 4375904, 4807183, 6368752, 7461896, 9614366, 12737504, 14923792, 19228732, 29847584, 38457464, 62493379, 76914928, 124986758, 153829856, 249973516, 499947032, 999894064, 1999788128]

約数ペア:

[(1, 1999788128), (2, 999894064), (4, 499947032), (8, 249973516), (13, 153829856), (16, 124986758), (26, 76914928), (32, 62493379), (52, 38457464), (67, 29847584), (104, 19228732), (134, 14923792), (157, 12737504), (208, 9614366), (268, 7461896), (314, 6368752), (416, 4807183), (457, 4375904), (536, 3730948), (628, 3184376), (871, 2295968), (914, 2187952), (1072, 1865474), (1256, 1592188), (1742, 1147984), (1828, 1093976), (2041, 979808), (2144, 932737), (2512, 796094), (3484, 573992), (3656, 546988), (4082, 489904), (5024, 398047), (5941, 336608), (6968, 286996), (7312, 273494), (8164, 244952), (10519, 190112), (11882, 168304), (13936, 143498), (14624, 136747), (16328, 122476), (21038, 95056), (23764, 84152), (27872, 71749), (30619, 65312), (32656, 61238), (42076, 47528)]