42640724

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{521}}^1$

素因数の和:648

約数の個数: 48

約数和(自身を含む): 88865280

約数和(自身を除く): 46224556

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 79, 148, 158, 259, 316, 518, 521, 553, 1036, 1042, 1106, 2084, 2212, 2923, 3647, 5846, 7294, 11692, 14588, 19277, 20461, 38554, 40922, 41159, 77108, 81844, 82318, 134939, 164636, 269878, 288113, 539756, 576226, 1152452, 1522883, 3045766, 6091532, 10660181, 21320362, 42640724]

約数ペア:

[(1, 42640724), (2, 21320362), (4, 10660181), (7, 6091532), (14, 3045766), (28, 1522883), (37, 1152452), (74, 576226), (79, 539756), (148, 288113), (158, 269878), (259, 164636), (316, 134939), (518, 82318), (521, 81844), (553, 77108), (1036, 41159), (1042, 40922), (1106, 38554), (2084, 20461), (2212, 19277), (2923, 14588), (3647, 11692), (5846, 7294)]