19709520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2003}}^1$

素因数の和:2060

約数の個数: 80

約数和(自身を含む): 62620992

約数和(自身を除く): 42911472

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, 2003, 2460, 3280, 4006, 4920, 6009, 8012, 9840, 10015, 12018, 16024, 20030, 24036, 30045, 32048, 40060, 48072, 60090, 80120, 82123, 96144, 120180, 160240, 164246, 240360, 246369, 328492, 410615, 480720, 492738, 656984, 821230, 985476, 1231845, 1313968, 1642460, 1970952, 2463690, 3284920, 3941904, 4927380, 6569840, 9854760, 19709520]

約数ペア:

[(1, 19709520), (2, 9854760), (3, 6569840), (4, 4927380), (5, 3941904), (6, 3284920), (8, 2463690), (10, 1970952), (12, 1642460), (15, 1313968), (16, 1231845), (20, 985476), (24, 821230), (30, 656984), (40, 492738), (41, 480720), (48, 410615), (60, 328492), (80, 246369), (82, 240360), (120, 164246), (123, 160240), (164, 120180), (205, 96144), (240, 82123), (246, 80120), (328, 60090), (410, 48072), (492, 40060), (615, 32048), (656, 30045), (820, 24036), (984, 20030), (1230, 16024), (1640, 12018), (1968, 10015), (2003, 9840), (2460, 8012), (3280, 6009), (4006, 4920)]