31841425

素因数分解:

$5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1$

素因数の和:191

約数の個数: 72

約数和(自身を含む): 53434080

約数和(自身を除く): 21592655

約数列:

[1, 5, 7, 11, 17, 25, 35, 49, 55, 77, 85, 119, 139, 175, 187, 245, 275, 385, 425, 539, 595, 695, 833, 935, 973, 1225, 1309, 1529, 1925, 2363, 2695, 2975, 3475, 4165, 4675, 4865, 6545, 6811, 7645, 9163, 10703, 11815, 13475, 16541, 20825, 24325, 25993, 32725, 34055, 38225, 45815, 53515, 59075, 74921, 82705, 115787, 129965, 170275, 181951, 229075, 267575, 374605, 413525, 578935, 649825, 909755, 1273657, 1873025, 2894675, 4548775, 6368285, 31841425]

約数ペア:

[(1, 31841425), (5, 6368285), (7, 4548775), (11, 2894675), (17, 1873025), (25, 1273657), (35, 909755), (49, 649825), (55, 578935), (77, 413525), (85, 374605), (119, 267575), (139, 229075), (175, 181951), (187, 170275), (245, 129965), (275, 115787), (385, 82705), (425, 74921), (539, 59075), (595, 53515), (695, 45815), (833, 38225), (935, 34055), (973, 32725), (1225, 25993), (1309, 24325), (1529, 20825), (1925, 16541), (2363, 13475), (2695, 11815), (2975, 10703), (3475, 9163), (4165, 7645), (4675, 6811), (4865, 6545)]