646020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:149

約数の個数: 72

約数和(自身を含む): 2033304

約数和(自身を除く): 1387284

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 37, 45, 60, 74, 90, 97, 111, 148, 180, 185, 194, 222, 291, 333, 370, 388, 444, 485, 555, 582, 666, 740, 873, 970, 1110, 1164, 1332, 1455, 1665, 1746, 1940, 2220, 2910, 3330, 3492, 3589, 4365, 5820, 6660, 7178, 8730, 10767, 14356, 17460, 17945, 21534, 32301, 35890, 43068, 53835, 64602, 71780, 107670, 129204, 161505, 215340, 323010, 646020]

約数ペア:

[(1, 646020), (2, 323010), (3, 215340), (4, 161505), (5, 129204), (6, 107670), (9, 71780), (10, 64602), (12, 53835), (15, 43068), (18, 35890), (20, 32301), (30, 21534), (36, 17945), (37, 17460), (45, 14356), (60, 10767), (74, 8730), (90, 7178), (97, 6660), (111, 5820), (148, 4365), (180, 3589), (185, 3492), (194, 3330), (222, 2910), (291, 2220), (333, 1940), (370, 1746), (388, 1665), (444, 1455), (485, 1332), (555, 1164), (582, 1110), (666, 970), (740, 873)]