18647280

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:208

約数の個数: 160

約数和(自身を含む): 65620800

約数和(自身を除く): 46973520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 89, 90, 97, 108, 120, 135, 144, 178, 180, 194, 216, 240, 267, 270, 291, 356, 360, 388, 432, 445, 485, 534, 540, 582, 712, 720, 776, 801, 873, 890, 970, 1068, 1080, 1164, 1335, 1424, 1455, 1552, 1602, 1746, 1780, 1940, 2136, 2160, 2328, 2403, 2619, 2670, 2910, 3204, 3492, 3560, 3880, 4005, 4272, 4365, 4656, 4806, 5238, 5340, 5820, 6408, 6984, 7120, 7760, 8010, 8633, 8730, 9612, 10476, 10680, 11640, 12015, 12816, 13095, 13968, 16020, 17266, 17460, 19224, 20952, 21360, 23280, 24030, 25899, 26190, 32040, 34532, 34920, 38448, 41904, 43165, 48060, 51798, 52380, 64080, 69064, 69840, 77697, 86330, 96120, 103596, 104760, 129495, 138128, 155394, 172660, 192240, 207192, 209520, 233091, 258990, 310788, 345320, 388485, 414384, 466182, 517980, 621576, 690640, 776970, 932364, 1035960, 1165455, 1243152, 1553940, 1864728, 2071920, 2330910, 3107880, 3729456, 4661820, 6215760, 9323640, 18647280]

約数ペア:

[(1, 18647280), (2, 9323640), (3, 6215760), (4, 4661820), (5, 3729456), (6, 3107880), (8, 2330910), (9, 2071920), (10, 1864728), (12, 1553940), (15, 1243152), (16, 1165455), (18, 1035960), (20, 932364), (24, 776970), (27, 690640), (30, 621576), (36, 517980), (40, 466182), (45, 414384), (48, 388485), (54, 345320), (60, 310788), (72, 258990), (80, 233091), (89, 209520), (90, 207192), (97, 192240), (108, 172660), (120, 155394), (135, 138128), (144, 129495), (178, 104760), (180, 103596), (194, 96120), (216, 86330), (240, 77697), (267, 69840), (270, 69064), (291, 64080), (356, 52380), (360, 51798), (388, 48060), (432, 43165), (445, 41904), (485, 38448), (534, 34920), (540, 34532), (582, 32040), (712, 26190), (720, 25899), (776, 24030), (801, 23280), (873, 21360), (890, 20952), (970, 19224), (1068, 17460), (1080, 17266), (1164, 16020), (1335, 13968), (1424, 13095), (1455, 12816), (1552, 12015), (1602, 11640), (1746, 10680), (1780, 10476), (1940, 9612), (2136, 8730), (2160, 8633), (2328, 8010), (2403, 7760), (2619, 7120), (2670, 6984), (2910, 6408), (3204, 5820), (3492, 5340), (3560, 5238), (3880, 4806), (4005, 4656), (4272, 4365)]