20166840

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{263}}^1$

素因数の和:354

約数の個数: 128

約数和(自身を含む): 68428800

約数和(自身を除く): 48261960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 71, 72, 90, 108, 120, 135, 142, 180, 213, 216, 263, 270, 284, 355, 360, 426, 526, 540, 568, 639, 710, 789, 852, 1052, 1065, 1080, 1278, 1315, 1420, 1578, 1704, 1917, 2104, 2130, 2367, 2556, 2630, 2840, 3156, 3195, 3834, 3945, 4260, 4734, 5112, 5260, 6312, 6390, 7101, 7668, 7890, 8520, 9468, 9585, 10520, 11835, 12780, 14202, 15336, 15780, 18673, 18936, 19170, 23670, 25560, 28404, 31560, 35505, 37346, 38340, 47340, 56019, 56808, 71010, 74692, 76680, 93365, 94680, 112038, 142020, 149384, 168057, 186730, 224076, 280095, 284040, 336114, 373460, 448152, 504171, 560190, 672228, 746920, 840285, 1008342, 1120380, 1344456, 1680570, 2016684, 2240760, 2520855, 3361140, 4033368, 5041710, 6722280, 10083420, 20166840]

約数ペア:

[(1, 20166840), (2, 10083420), (3, 6722280), (4, 5041710), (5, 4033368), (6, 3361140), (8, 2520855), (9, 2240760), (10, 2016684), (12, 1680570), (15, 1344456), (18, 1120380), (20, 1008342), (24, 840285), (27, 746920), (30, 672228), (36, 560190), (40, 504171), (45, 448152), (54, 373460), (60, 336114), (71, 284040), (72, 280095), (90, 224076), (108, 186730), (120, 168057), (135, 149384), (142, 142020), (180, 112038), (213, 94680), (216, 93365), (263, 76680), (270, 74692), (284, 71010), (355, 56808), (360, 56019), (426, 47340), (526, 38340), (540, 37346), (568, 35505), (639, 31560), (710, 28404), (789, 25560), (852, 23670), (1052, 19170), (1065, 18936), (1080, 18673), (1278, 15780), (1315, 15336), (1420, 14202), (1578, 12780), (1704, 11835), (1917, 10520), (2104, 9585), (2130, 9468), (2367, 8520), (2556, 7890), (2630, 7668), (2840, 7101), (3156, 6390), (3195, 6312), (3834, 5260), (3945, 5112), (4260, 4734)]