19896840

素因数分解:

$2^3\times 3^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:138

約数の個数: 192

約数和(自身を含む): 70761600

約数和(自身を除く): 50864760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 27, 30, 36, 40, 45, 46, 54, 60, 69, 72, 81, 89, 90, 92, 108, 115, 120, 135, 138, 162, 178, 180, 184, 207, 216, 230, 243, 267, 270, 276, 324, 345, 356, 360, 405, 414, 445, 460, 486, 534, 540, 552, 621, 648, 690, 712, 801, 810, 828, 890, 920, 972, 1035, 1068, 1080, 1215, 1242, 1335, 1380, 1602, 1620, 1656, 1780, 1863, 1944, 2047, 2070, 2136, 2403, 2430, 2484, 2670, 2760, 3105, 3204, 3240, 3560, 3726, 4005, 4094, 4140, 4806, 4860, 4968, 5340, 5589, 6141, 6210, 6408, 7209, 7452, 8010, 8188, 8280, 9315, 9612, 9720, 10235, 10680, 11178, 12015, 12282, 12420, 14418, 14904, 16020, 16376, 18423, 18630, 19224, 20470, 21627, 22356, 24030, 24564, 24840, 27945, 28836, 30705, 32040, 36045, 36846, 37260, 40940, 43254, 44712, 48060, 49128, 55269, 55890, 57672, 61410, 72090, 73692, 74520, 81880, 86508, 92115, 96120, 108135, 110538, 111780, 122820, 144180, 147384, 165807, 173016, 184230, 216270, 221076, 223560, 245640, 276345, 288360, 331614, 368460, 432540, 442152, 497421, 552690, 663228, 736920, 829035, 865080, 994842, 1105380, 1326456, 1658070, 1989684, 2210760, 2487105, 3316140, 3979368, 4974210, 6632280, 9948420, 19896840]

約数ペア:

[(1, 19896840), (2, 9948420), (3, 6632280), (4, 4974210), (5, 3979368), (6, 3316140), (8, 2487105), (9, 2210760), (10, 1989684), (12, 1658070), (15, 1326456), (18, 1105380), (20, 994842), (23, 865080), (24, 829035), (27, 736920), (30, 663228), (36, 552690), (40, 497421), (45, 442152), (46, 432540), (54, 368460), (60, 331614), (69, 288360), (72, 276345), (81, 245640), (89, 223560), (90, 221076), (92, 216270), (108, 184230), (115, 173016), (120, 165807), (135, 147384), (138, 144180), (162, 122820), (178, 111780), (180, 110538), (184, 108135), (207, 96120), (216, 92115), (230, 86508), (243, 81880), (267, 74520), (270, 73692), (276, 72090), (324, 61410), (345, 57672), (356, 55890), (360, 55269), (405, 49128), (414, 48060), (445, 44712), (460, 43254), (486, 40940), (534, 37260), (540, 36846), (552, 36045), (621, 32040), (648, 30705), (690, 28836), (712, 27945), (801, 24840), (810, 24564), (828, 24030), (890, 22356), (920, 21627), (972, 20470), (1035, 19224), (1068, 18630), (1080, 18423), (1215, 16376), (1242, 16020), (1335, 14904), (1380, 14418), (1602, 12420), (1620, 12282), (1656, 12015), (1780, 11178), (1863, 10680), (1944, 10235), (2047, 9720), (2070, 9612), (2136, 9315), (2403, 8280), (2430, 8188), (2484, 8010), (2670, 7452), (2760, 7209), (3105, 6408), (3204, 6210), (3240, 6141), (3560, 5589), (3726, 5340), (4005, 4968), (4094, 4860), (4140, 4806)]