721948680

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{668471}}^1$

素因数の和:668491

約数の個数: 64

約数和(自身を含む): 2406499200

約数和(自身を除く): 1684550520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 668471, 1336942, 2005413, 2673884, 3342355, 4010826, 5347768, 6016239, 6684710, 8021652, 10027065, 12032478, 13369420, 16043304, 18048717, 20054130, 24064956, 26738840, 30081195, 36097434, 40108260, 48129912, 60162390, 72194868, 80216520, 90243585, 120324780, 144389736, 180487170, 240649560, 360974340, 721948680]

約数ペア:

[(1, 721948680), (2, 360974340), (3, 240649560), (4, 180487170), (5, 144389736), (6, 120324780), (8, 90243585), (9, 80216520), (10, 72194868), (12, 60162390), (15, 48129912), (18, 40108260), (20, 36097434), (24, 30081195), (27, 26738840), (30, 24064956), (36, 20054130), (40, 18048717), (45, 16043304), (54, 13369420), (60, 12032478), (72, 10027065), (90, 8021652), (108, 6684710), (120, 6016239), (135, 5347768), (180, 4010826), (216, 3342355), (270, 2673884), (360, 2005413), (540, 1336942), (1080, 668471)]