16660020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:122

約数の個数: 144

約数和(自身を含む): 53125632

約数和(自身を除く): 36465612

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 31, 39, 52, 53, 60, 62, 65, 78, 93, 106, 124, 130, 155, 156, 159, 169, 186, 195, 212, 260, 265, 310, 318, 338, 372, 390, 403, 465, 507, 530, 620, 636, 676, 689, 780, 795, 806, 845, 930, 1014, 1060, 1209, 1378, 1590, 1612, 1643, 1690, 1860, 2015, 2028, 2067, 2418, 2535, 2756, 3180, 3286, 3380, 3445, 4030, 4134, 4836, 4929, 5070, 5239, 6045, 6572, 6890, 8060, 8215, 8268, 8957, 9858, 10140, 10335, 10478, 12090, 13780, 15717, 16430, 17914, 19716, 20670, 20956, 21359, 24180, 24645, 26195, 26871, 31434, 32860, 35828, 41340, 42718, 44785, 49290, 52390, 53742, 62868, 64077, 78585, 85436, 89570, 98580, 104780, 106795, 107484, 128154, 134355, 157170, 179140, 213590, 256308, 268710, 277667, 314340, 320385, 427180, 537420, 555334, 640770, 833001, 1110668, 1281540, 1388335, 1666002, 2776670, 3332004, 4165005, 5553340, 8330010, 16660020]

約数ペア:

[(1, 16660020), (2, 8330010), (3, 5553340), (4, 4165005), (5, 3332004), (6, 2776670), (10, 1666002), (12, 1388335), (13, 1281540), (15, 1110668), (20, 833001), (26, 640770), (30, 555334), (31, 537420), (39, 427180), (52, 320385), (53, 314340), (60, 277667), (62, 268710), (65, 256308), (78, 213590), (93, 179140), (106, 157170), (124, 134355), (130, 128154), (155, 107484), (156, 106795), (159, 104780), (169, 98580), (186, 89570), (195, 85436), (212, 78585), (260, 64077), (265, 62868), (310, 53742), (318, 52390), (338, 49290), (372, 44785), (390, 42718), (403, 41340), (465, 35828), (507, 32860), (530, 31434), (620, 26871), (636, 26195), (676, 24645), (689, 24180), (780, 21359), (795, 20956), (806, 20670), (845, 19716), (930, 17914), (1014, 16430), (1060, 15717), (1209, 13780), (1378, 12090), (1590, 10478), (1612, 10335), (1643, 10140), (1690, 9858), (1860, 8957), (2015, 8268), (2028, 8215), (2067, 8060), (2418, 6890), (2535, 6572), (2756, 6045), (3180, 5239), (3286, 5070), (3380, 4929), (3445, 4836), (4030, 4134)]