20108040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:183

約数の個数: 128

約数和(自身を含む): 63745920

約数和(自身を除く): 43637880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 41, 60, 61, 67, 82, 120, 122, 123, 134, 164, 183, 201, 205, 244, 246, 268, 305, 328, 335, 366, 402, 410, 488, 492, 536, 610, 615, 670, 732, 804, 820, 915, 984, 1005, 1220, 1230, 1340, 1464, 1608, 1640, 1830, 2010, 2440, 2460, 2501, 2680, 2747, 3660, 4020, 4087, 4920, 5002, 5494, 7320, 7503, 8040, 8174, 8241, 10004, 10988, 12261, 12505, 13735, 15006, 16348, 16482, 20008, 20435, 21976, 24522, 25010, 27470, 30012, 32696, 32964, 37515, 40870, 41205, 49044, 50020, 54940, 60024, 61305, 65928, 75030, 81740, 82410, 98088, 100040, 109880, 122610, 150060, 163480, 164820, 167567, 245220, 300120, 329640, 335134, 490440, 502701, 670268, 837835, 1005402, 1340536, 1675670, 2010804, 2513505, 3351340, 4021608, 5027010, 6702680, 10054020, 20108040]

約数ペア:

[(1, 20108040), (2, 10054020), (3, 6702680), (4, 5027010), (5, 4021608), (6, 3351340), (8, 2513505), (10, 2010804), (12, 1675670), (15, 1340536), (20, 1005402), (24, 837835), (30, 670268), (40, 502701), (41, 490440), (60, 335134), (61, 329640), (67, 300120), (82, 245220), (120, 167567), (122, 164820), (123, 163480), (134, 150060), (164, 122610), (183, 109880), (201, 100040), (205, 98088), (244, 82410), (246, 81740), (268, 75030), (305, 65928), (328, 61305), (335, 60024), (366, 54940), (402, 50020), (410, 49044), (488, 41205), (492, 40870), (536, 37515), (610, 32964), (615, 32696), (670, 30012), (732, 27470), (804, 25010), (820, 24522), (915, 21976), (984, 20435), (1005, 20008), (1220, 16482), (1230, 16348), (1340, 15006), (1464, 13735), (1608, 12505), (1640, 12261), (1830, 10988), (2010, 10004), (2440, 8241), (2460, 8174), (2501, 8040), (2680, 7503), (2747, 7320), (3660, 5494), (4020, 5002), (4087, 4920)]