21840753280

素因数分解:

$2^7\times 5^1\times {\mathrm{3923}}^1\times {\mathrm{8699}}^1$

素因数の和:12641

約数の個数: 64

約数和(自身を含む): 52232364000

約数和(自身を除く): 30391610720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 3923, 7846, 8699, 15692, 17398, 19615, 31384, 34796, 39230, 43495, 62768, 69592, 78460, 86990, 125536, 139184, 156920, 173980, 251072, 278368, 313840, 347960, 502144, 556736, 627680, 695920, 1113472, 1255360, 1391840, 2510720, 2783680, 5567360, 34126177, 68252354, 136504708, 170630885, 273009416, 341261770, 546018832, 682523540, 1092037664, 1365047080, 2184075328, 2730094160, 4368150656, 5460188320, 10920376640, 21840753280]

約数ペア:

[(1, 21840753280), (2, 10920376640), (4, 5460188320), (5, 4368150656), (8, 2730094160), (10, 2184075328), (16, 1365047080), (20, 1092037664), (32, 682523540), (40, 546018832), (64, 341261770), (80, 273009416), (128, 170630885), (160, 136504708), (320, 68252354), (640, 34126177), (3923, 5567360), (7846, 2783680), (8699, 2510720), (15692, 1391840), (17398, 1255360), (19615, 1113472), (31384, 695920), (34796, 627680), (39230, 556736), (43495, 502144), (62768, 347960), (69592, 313840), (78460, 278368), (86990, 251072), (125536, 173980), (139184, 156920)]