215548100

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{1231}}^1$

素因数の和:1365

約数の個数: 72

約数和(自身を含む): 500467968

約数和(自身を除く): 284919868

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 103, 170, 206, 340, 412, 425, 515, 850, 1030, 1231, 1700, 1751, 2060, 2462, 2575, 3502, 4924, 5150, 6155, 7004, 8755, 10300, 12310, 17510, 20927, 24620, 30775, 35020, 41854, 43775, 61550, 83708, 87550, 104635, 123100, 126793, 175100, 209270, 253586, 418540, 507172, 523175, 633965, 1046350, 1267930, 2092700, 2155481, 2535860, 3169825, 4310962, 6339650, 8621924, 10777405, 12679300, 21554810, 43109620, 53887025, 107774050, 215548100]

約数ペア:

[(1, 215548100), (2, 107774050), (4, 53887025), (5, 43109620), (10, 21554810), (17, 12679300), (20, 10777405), (25, 8621924), (34, 6339650), (50, 4310962), (68, 3169825), (85, 2535860), (100, 2155481), (103, 2092700), (170, 1267930), (206, 1046350), (340, 633965), (412, 523175), (425, 507172), (515, 418540), (850, 253586), (1030, 209270), (1231, 175100), (1700, 126793), (1751, 123100), (2060, 104635), (2462, 87550), (2575, 83708), (3502, 61550), (4924, 43775), (5150, 41854), (6155, 35020), (7004, 30775), (8755, 24620), (10300, 20927), (12310, 17510)]