73891475

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{313}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 112135680

約数和(自身を除く): 38244205

約数列:

[1, 5, 7, 19, 25, 35, 71, 95, 133, 175, 313, 355, 475, 497, 665, 1349, 1565, 1775, 2191, 2485, 3325, 5947, 6745, 7825, 9443, 10955, 12425, 22223, 29735, 33725, 41629, 47215, 54775, 111115, 148675, 155561, 208145, 236075, 422237, 555575, 777805, 1040725, 2111185, 2955659, 3889025, 10555925, 14778295, 73891475]

約数ペア:

[(1, 73891475), (5, 14778295), (7, 10555925), (19, 3889025), (25, 2955659), (35, 2111185), (71, 1040725), (95, 777805), (133, 555575), (175, 422237), (313, 236075), (355, 208145), (475, 155561), (497, 148675), (665, 111115), (1349, 54775), (1565, 47215), (1775, 41629), (2191, 33725), (2485, 29735), (3325, 22223), (5947, 12425), (6745, 10955), (7825, 9443)]