20478720

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{5333}}^1$

素因数の和:5357

約数の個数: 72

約数和(自身を含む): 65416176

約数和(自身を除く): 44937456

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 3840, 5333, 10666, 15999, 21332, 26665, 31998, 42664, 53330, 63996, 79995, 85328, 106660, 127992, 159990, 170656, 213320, 255984, 319980, 341312, 426640, 511968, 639960, 682624, 853280, 1023936, 1279920, 1365248, 1706560, 2047872, 2559840, 3413120, 4095744, 5119680, 6826240, 10239360, 20478720]

約数ペア:

[(1, 20478720), (2, 10239360), (3, 6826240), (4, 5119680), (5, 4095744), (6, 3413120), (8, 2559840), (10, 2047872), (12, 1706560), (15, 1365248), (16, 1279920), (20, 1023936), (24, 853280), (30, 682624), (32, 639960), (40, 511968), (48, 426640), (60, 341312), (64, 319980), (80, 255984), (96, 213320), (120, 170656), (128, 159990), (160, 127992), (192, 106660), (240, 85328), (256, 79995), (320, 63996), (384, 53330), (480, 42664), (640, 31998), (768, 26665), (960, 21332), (1280, 15999), (1920, 10666), (3840, 5333)]