20964120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4261}}^1$

素因数の和:4316

約数の個数: 64

約数和(自身を含む): 64441440

約数和(自身を除く): 43477320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 41, 60, 82, 120, 123, 164, 205, 246, 328, 410, 492, 615, 820, 984, 1230, 1640, 2460, 4261, 4920, 8522, 12783, 17044, 21305, 25566, 34088, 42610, 51132, 63915, 85220, 102264, 127830, 170440, 174701, 255660, 349402, 511320, 524103, 698804, 873505, 1048206, 1397608, 1747010, 2096412, 2620515, 3494020, 4192824, 5241030, 6988040, 10482060, 20964120]

約数ペア:

[(1, 20964120), (2, 10482060), (3, 6988040), (4, 5241030), (5, 4192824), (6, 3494020), (8, 2620515), (10, 2096412), (12, 1747010), (15, 1397608), (20, 1048206), (24, 873505), (30, 698804), (40, 524103), (41, 511320), (60, 349402), (82, 255660), (120, 174701), (123, 170440), (164, 127830), (205, 102264), (246, 85220), (328, 63915), (410, 51132), (492, 42610), (615, 34088), (820, 25566), (984, 21305), (1230, 17044), (1640, 12783), (2460, 8522), (4261, 4920)]