71609580

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{353}}^1$

素因数の和:405

約数の個数: 216

約数和(自身を含む): 264412512

約数和(自身を除く): 192802932

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 23, 28, 30, 35, 36, 42, 45, 46, 49, 60, 63, 69, 70, 84, 90, 92, 98, 105, 115, 126, 138, 140, 147, 161, 180, 196, 207, 210, 230, 245, 252, 276, 294, 315, 322, 345, 353, 414, 420, 441, 460, 483, 490, 588, 630, 644, 690, 706, 735, 805, 828, 882, 966, 980, 1035, 1059, 1127, 1260, 1380, 1412, 1449, 1470, 1610, 1764, 1765, 1932, 2070, 2118, 2205, 2254, 2415, 2471, 2898, 2940, 3177, 3220, 3381, 3530, 4140, 4236, 4410, 4508, 4830, 4942, 5295, 5635, 5796, 6354, 6762, 7060, 7245, 7413, 8119, 8820, 9660, 9884, 10143, 10590, 11270, 12355, 12708, 13524, 14490, 14826, 15885, 16238, 16905, 17297, 20286, 21180, 22239, 22540, 24357, 24710, 28980, 29652, 31770, 32476, 33810, 34594, 37065, 40572, 40595, 44478, 48714, 49420, 50715, 51891, 56833, 63540, 67620, 69188, 73071, 74130, 81190, 86485, 88956, 97428, 101430, 103782, 111195, 113666, 121785, 146142, 148260, 155673, 162380, 170499, 172970, 202860, 207564, 222390, 227332, 243570, 259455, 284165, 292284, 311346, 340998, 345940, 365355, 397831, 444780, 487140, 511497, 518910, 568330, 622692, 681996, 730710, 778365, 795662, 852495, 1022994, 1037820, 1136660, 1193493, 1461420, 1556730, 1591324, 1704990, 1989155, 2045988, 2386986, 2557485, 3113460, 3409980, 3580479, 3978310, 4773972, 5114970, 5967465, 7160958, 7956620, 10229940, 11934930, 14321916, 17902395, 23869860, 35804790, 71609580]

約数ペア:

[(1, 71609580), (2, 35804790), (3, 23869860), (4, 17902395), (5, 14321916), (6, 11934930), (7, 10229940), (9, 7956620), (10, 7160958), (12, 5967465), (14, 5114970), (15, 4773972), (18, 3978310), (20, 3580479), (21, 3409980), (23, 3113460), (28, 2557485), (30, 2386986), (35, 2045988), (36, 1989155), (42, 1704990), (45, 1591324), (46, 1556730), (49, 1461420), (60, 1193493), (63, 1136660), (69, 1037820), (70, 1022994), (84, 852495), (90, 795662), (92, 778365), (98, 730710), (105, 681996), (115, 622692), (126, 568330), (138, 518910), (140, 511497), (147, 487140), (161, 444780), (180, 397831), (196, 365355), (207, 345940), (210, 340998), (230, 311346), (245, 292284), (252, 284165), (276, 259455), (294, 243570), (315, 227332), (322, 222390), (345, 207564), (353, 202860), (414, 172970), (420, 170499), (441, 162380), (460, 155673), (483, 148260), (490, 146142), (588, 121785), (630, 113666), (644, 111195), (690, 103782), (706, 101430), (735, 97428), (805, 88956), (828, 86485), (882, 81190), (966, 74130), (980, 73071), (1035, 69188), (1059, 67620), (1127, 63540), (1260, 56833), (1380, 51891), (1412, 50715), (1449, 49420), (1470, 48714), (1610, 44478), (1764, 40595), (1765, 40572), (1932, 37065), (2070, 34594), (2118, 33810), (2205, 32476), (2254, 31770), (2415, 29652), (2471, 28980), (2898, 24710), (2940, 24357), (3177, 22540), (3220, 22239), (3381, 21180), (3530, 20286), (4140, 17297), (4236, 16905), (4410, 16238), (4508, 15885), (4830, 14826), (4942, 14490), (5295, 13524), (5635, 12708), (5796, 12355), (6354, 11270), (6762, 10590), (7060, 10143), (7245, 9884), (7413, 9660), (8119, 8820)]