19438920

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{439}}^1$

素因数の和:500

約数の個数: 128

約数和(自身を含む): 66528000

約数和(自身を除く): 47089080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 41, 45, 54, 60, 72, 82, 90, 108, 120, 123, 135, 164, 180, 205, 216, 246, 270, 328, 360, 369, 410, 439, 492, 540, 615, 738, 820, 878, 984, 1080, 1107, 1230, 1317, 1476, 1640, 1756, 1845, 2195, 2214, 2460, 2634, 2952, 3512, 3690, 3951, 4390, 4428, 4920, 5268, 5535, 6585, 7380, 7902, 8780, 8856, 10536, 11070, 11853, 13170, 14760, 15804, 17560, 17999, 19755, 22140, 23706, 26340, 31608, 35998, 39510, 44280, 47412, 52680, 53997, 59265, 71996, 79020, 89995, 94824, 107994, 118530, 143992, 158040, 161991, 179990, 215988, 237060, 269985, 323982, 359980, 431976, 474120, 485973, 539970, 647964, 719960, 809955, 971946, 1079940, 1295928, 1619910, 1943892, 2159880, 2429865, 3239820, 3887784, 4859730, 6479640, 9719460, 19438920]

約数ペア:

[(1, 19438920), (2, 9719460), (3, 6479640), (4, 4859730), (5, 3887784), (6, 3239820), (8, 2429865), (9, 2159880), (10, 1943892), (12, 1619910), (15, 1295928), (18, 1079940), (20, 971946), (24, 809955), (27, 719960), (30, 647964), (36, 539970), (40, 485973), (41, 474120), (45, 431976), (54, 359980), (60, 323982), (72, 269985), (82, 237060), (90, 215988), (108, 179990), (120, 161991), (123, 158040), (135, 143992), (164, 118530), (180, 107994), (205, 94824), (216, 89995), (246, 79020), (270, 71996), (328, 59265), (360, 53997), (369, 52680), (410, 47412), (439, 44280), (492, 39510), (540, 35998), (615, 31608), (738, 26340), (820, 23706), (878, 22140), (984, 19755), (1080, 17999), (1107, 17560), (1230, 15804), (1317, 14760), (1476, 13170), (1640, 11853), (1756, 11070), (1845, 10536), (2195, 8856), (2214, 8780), (2460, 7902), (2634, 7380), (2952, 6585), (3512, 5535), (3690, 5268), (3951, 4920), (4390, 4428)]