280199175

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^2\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:261

約数の個数: 72

約数和(自身を含む): 498896640

約数和(自身を除く): 218697465

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 79, 95, 131, 237, 285, 361, 393, 395, 475, 655, 1083, 1185, 1425, 1501, 1805, 1965, 1975, 2489, 3275, 4503, 5415, 5925, 7467, 7505, 9025, 9825, 10349, 12445, 22515, 27075, 28519, 31047, 37335, 37525, 47291, 51745, 62225, 85557, 112575, 141873, 142595, 155235, 186675, 196631, 236455, 258725, 427785, 589893, 709365, 712975, 776175, 983155, 1182275, 2138925, 2949465, 3546825, 3735989, 4915775, 11207967, 14747325, 18679945, 56039835, 93399725, 280199175]

約数ペア:

[(1, 280199175), (3, 93399725), (5, 56039835), (15, 18679945), (19, 14747325), (25, 11207967), (57, 4915775), (75, 3735989), (79, 3546825), (95, 2949465), (131, 2138925), (237, 1182275), (285, 983155), (361, 776175), (393, 712975), (395, 709365), (475, 589893), (655, 427785), (1083, 258725), (1185, 236455), (1425, 196631), (1501, 186675), (1805, 155235), (1965, 142595), (1975, 141873), (2489, 112575), (3275, 85557), (4503, 62225), (5415, 51745), (5925, 47291), (7467, 37525), (7505, 37335), (9025, 31047), (9825, 28519), (10349, 27075), (12445, 22515)]