21386721440

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{3779}}^1$

素因数の和:3995

約数の個数: 192

約数和(自身を含む): 59988418560

約数和(自身を除く): 38601697120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 160, 163, 217, 224, 248, 280, 310, 326, 434, 496, 560, 620, 652, 815, 868, 992, 1085, 1120, 1141, 1240, 1304, 1630, 1736, 2170, 2282, 2480, 2608, 3260, 3472, 3779, 4340, 4564, 4960, 5053, 5216, 5705, 6520, 6944, 7558, 8680, 9128, 10106, 11410, 13040, 15116, 17360, 18256, 18895, 20212, 22820, 25265, 26080, 26453, 30232, 34720, 35371, 36512, 37790, 40424, 45640, 50530, 52906, 60464, 70742, 75580, 80848, 91280, 101060, 105812, 117149, 120928, 132265, 141484, 151160, 161696, 176855, 182560, 202120, 211624, 234298, 264530, 282968, 302320, 353710, 404240, 423248, 468596, 529060, 565936, 585745, 604640, 615977, 707420, 808480, 820043, 846496, 937192, 1058120, 1131872, 1171490, 1231954, 1414840, 1640086, 1874384, 2116240, 2342980, 2463908, 2829680, 3079885, 3280172, 3748768, 4100215, 4232480, 4311839, 4685960, 4927816, 5659360, 6159770, 6560344, 8200430, 8623678, 9371920, 9855632, 12319540, 13120688, 16400860, 17247356, 18743840, 19095287, 19711264, 21559195, 24639080, 26241376, 32801720, 34494712, 38190574, 43118390, 49278160, 65603440, 68989424, 76381148, 86236780, 95476435, 98556320, 131206880, 133667009, 137978848, 152762296, 172473560, 190952870, 267334018, 305524592, 344947120, 381905740, 534668036, 611049184, 668335045, 689894240, 763811480, 1069336072, 1336670090, 1527622960, 2138672144, 2673340180, 3055245920, 4277344288, 5346680360, 10693360720, 21386721440]

約数ペア:

[(1, 21386721440), (2, 10693360720), (4, 5346680360), (5, 4277344288), (7, 3055245920), (8, 2673340180), (10, 2138672144), (14, 1527622960), (16, 1336670090), (20, 1069336072), (28, 763811480), (31, 689894240), (32, 668335045), (35, 611049184), (40, 534668036), (56, 381905740), (62, 344947120), (70, 305524592), (80, 267334018), (112, 190952870), (124, 172473560), (140, 152762296), (155, 137978848), (160, 133667009), (163, 131206880), (217, 98556320), (224, 95476435), (248, 86236780), (280, 76381148), (310, 68989424), (326, 65603440), (434, 49278160), (496, 43118390), (560, 38190574), (620, 34494712), (652, 32801720), (815, 26241376), (868, 24639080), (992, 21559195), (1085, 19711264), (1120, 19095287), (1141, 18743840), (1240, 17247356), (1304, 16400860), (1630, 13120688), (1736, 12319540), (2170, 9855632), (2282, 9371920), (2480, 8623678), (2608, 8200430), (3260, 6560344), (3472, 6159770), (3779, 5659360), (4340, 4927816), (4564, 4685960), (4960, 4311839), (5053, 4232480), (5216, 4100215), (5705, 3748768), (6520, 3280172), (6944, 3079885), (7558, 2829680), (8680, 2463908), (9128, 2342980), (10106, 2116240), (11410, 1874384), (13040, 1640086), (15116, 1414840), (17360, 1231954), (18256, 1171490), (18895, 1131872), (20212, 1058120), (22820, 937192), (25265, 846496), (26080, 820043), (26453, 808480), (30232, 707420), (34720, 615977), (35371, 604640), (36512, 585745), (37790, 565936), (40424, 529060), (45640, 468596), (50530, 423248), (52906, 404240), (60464, 353710), (70742, 302320), (75580, 282968), (80848, 264530), (91280, 234298), (101060, 211624), (105812, 202120), (117149, 182560), (120928, 176855), (132265, 161696), (141484, 151160)]