217780108

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{673}}^1$

素因数の和:831

約数の個数: 72

約数和(自身を含む): 481915392

約数和(自身を除く): 264135284

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 127, 182, 196, 254, 364, 508, 637, 673, 889, 1274, 1346, 1651, 1778, 2548, 2692, 3302, 3556, 4711, 6223, 6604, 8749, 9422, 11557, 12446, 17498, 18844, 23114, 24892, 32977, 34996, 46228, 61243, 65954, 80899, 85471, 122486, 131908, 161798, 170942, 244972, 323596, 341884, 428701, 598297, 857402, 1111123, 1196594, 1714804, 2222246, 2393188, 4188079, 4444492, 7777861, 8376158, 15555722, 16752316, 31111444, 54445027, 108890054, 217780108]

約数ペア:

[(1, 217780108), (2, 108890054), (4, 54445027), (7, 31111444), (13, 16752316), (14, 15555722), (26, 8376158), (28, 7777861), (49, 4444492), (52, 4188079), (91, 2393188), (98, 2222246), (127, 1714804), (182, 1196594), (196, 1111123), (254, 857402), (364, 598297), (508, 428701), (637, 341884), (673, 323596), (889, 244972), (1274, 170942), (1346, 161798), (1651, 131908), (1778, 122486), (2548, 85471), (2692, 80899), (3302, 65954), (3556, 61243), (4711, 46228), (6223, 34996), (6604, 32977), (8749, 24892), (9422, 23114), (11557, 18844), (12446, 17498)]