20299920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2063}}^1$

素因数の和:2120

約数の個数: 80

約数和(自身を含む): 64495872

約数和(自身を除く): 44195952

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 41, 48, 60, 80, 82, 120, 123, 164, 205, 240, 246, 328, 410, 492, 615, 656, 820, 984, 1230, 1640, 1968, 2063, 2460, 3280, 4126, 4920, 6189, 8252, 9840, 10315, 12378, 16504, 20630, 24756, 30945, 33008, 41260, 49512, 61890, 82520, 84583, 99024, 123780, 165040, 169166, 247560, 253749, 338332, 422915, 495120, 507498, 676664, 845830, 1014996, 1268745, 1353328, 1691660, 2029992, 2537490, 3383320, 4059984, 5074980, 6766640, 10149960, 20299920]

約数ペア:

[(1, 20299920), (2, 10149960), (3, 6766640), (4, 5074980), (5, 4059984), (6, 3383320), (8, 2537490), (10, 2029992), (12, 1691660), (15, 1353328), (16, 1268745), (20, 1014996), (24, 845830), (30, 676664), (40, 507498), (41, 495120), (48, 422915), (60, 338332), (80, 253749), (82, 247560), (120, 169166), (123, 165040), (164, 123780), (205, 99024), (240, 84583), (246, 82520), (328, 61890), (410, 49512), (492, 41260), (615, 33008), (656, 30945), (820, 24756), (984, 20630), (1230, 16504), (1640, 12378), (1968, 10315), (2063, 9840), (2460, 8252), (3280, 6189), (4126, 4920)]