19797480

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{797}}^1$

素因数の和:840

約数の個数: 128

約数和(自身を含む): 68947200

約数和(自身を除く): 49149720

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, 90, 92, 108, 115, 120, 135, 138, 180, 184, 207, 216, 230, 270, 276, 345, 360, 414, 460, 540, 552, 621, 690, 797, 828, 920, 1035, 1080, 1242, 1380, 1594, 1656, 2070, 2391, 2484, 2760, 3105, 3188, 3985, 4140, 4782, 4968, 6210, 6376, 7173, 7970, 8280, 9564, 11955, 12420, 14346, 15940, 18331, 19128, 21519, 23910, 24840, 28692, 31880, 35865, 36662, 43038, 47820, 54993, 57384, 71730, 73324, 86076, 91655, 95640, 107595, 109986, 143460, 146648, 164979, 172152, 183310, 215190, 219972, 274965, 286920, 329958, 366620, 430380, 439944, 494937, 549930, 659916, 733240, 824895, 860760, 989874, 1099860, 1319832, 1649790, 1979748, 2199720, 2474685, 3299580, 3959496, 4949370, 6599160, 9898740, 19797480]

約数ペア:

[(1, 19797480), (2, 9898740), (3, 6599160), (4, 4949370), (5, 3959496), (6, 3299580), (8, 2474685), (9, 2199720), (10, 1979748), (12, 1649790), (15, 1319832), (18, 1099860), (20, 989874), (23, 860760), (24, 824895), (27, 733240), (30, 659916), (36, 549930), (40, 494937), (45, 439944), (46, 430380), (54, 366620), (60, 329958), (69, 286920), (72, 274965), (90, 219972), (92, 215190), (108, 183310), (115, 172152), (120, 164979), (135, 146648), (138, 143460), (180, 109986), (184, 107595), (207, 95640), (216, 91655), (230, 86076), (270, 73324), (276, 71730), (345, 57384), (360, 54993), (414, 47820), (460, 43038), (540, 36662), (552, 35865), (621, 31880), (690, 28692), (797, 24840), (828, 23910), (920, 21519), (1035, 19128), (1080, 18331), (1242, 15940), (1380, 14346), (1594, 12420), (1656, 11955), (2070, 9564), (2391, 8280), (2484, 7970), (2760, 7173), (3105, 6376), (3188, 6210), (3985, 4968), (4140, 4782)]