39406780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{509}}^1$

素因数の和:611

約数の個数: 72

約数和(自身を含む): 97675200

約数和(自身を除く): 58268420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 79, 98, 140, 158, 196, 245, 316, 395, 490, 509, 553, 790, 980, 1018, 1106, 1580, 2036, 2212, 2545, 2765, 3563, 3871, 5090, 5530, 7126, 7742, 10180, 11060, 14252, 15484, 17815, 19355, 24941, 35630, 38710, 40211, 49882, 71260, 77420, 80422, 99764, 124705, 160844, 201055, 249410, 281477, 402110, 498820, 562954, 804220, 1125908, 1407385, 1970339, 2814770, 3940678, 5629540, 7881356, 9851695, 19703390, 39406780]

約数ペア:

[(1, 39406780), (2, 19703390), (4, 9851695), (5, 7881356), (7, 5629540), (10, 3940678), (14, 2814770), (20, 1970339), (28, 1407385), (35, 1125908), (49, 804220), (70, 562954), (79, 498820), (98, 402110), (140, 281477), (158, 249410), (196, 201055), (245, 160844), (316, 124705), (395, 99764), (490, 80422), (509, 77420), (553, 71260), (790, 49882), (980, 40211), (1018, 38710), (1106, 35630), (1580, 24941), (2036, 19355), (2212, 17815), (2545, 15484), (2765, 14252), (3563, 11060), (3871, 10180), (5090, 7742), (5530, 7126)]