30720720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6737}}^1$

素因数の和:6772

約数の個数: 80

約数和(自身を含む): 100261440

約数和(自身を除く): 69540720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4560, 6737, 13474, 20211, 26948, 33685, 40422, 53896, 67370, 80844, 101055, 107792, 128003, 134740, 161688, 202110, 256006, 269480, 323376, 384009, 404220, 512012, 538960, 640015, 768018, 808440, 1024024, 1280030, 1536036, 1616880, 1920045, 2048048, 2560060, 3072072, 3840090, 5120120, 6144144, 7680180, 10240240, 15360360, 30720720]

約数ペア:

[(1, 30720720), (2, 15360360), (3, 10240240), (4, 7680180), (5, 6144144), (6, 5120120), (8, 3840090), (10, 3072072), (12, 2560060), (15, 2048048), (16, 1920045), (19, 1616880), (20, 1536036), (24, 1280030), (30, 1024024), (38, 808440), (40, 768018), (48, 640015), (57, 538960), (60, 512012), (76, 404220), (80, 384009), (95, 323376), (114, 269480), (120, 256006), (152, 202110), (190, 161688), (228, 134740), (240, 128003), (285, 107792), (304, 101055), (380, 80844), (456, 67370), (570, 53896), (760, 40422), (912, 33685), (1140, 26948), (1520, 20211), (2280, 13474), (4560, 6737)]