261948915

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{9883}}^1$

素因数の和:9944

約数の個数: 48

約数和(自身を含む): 493409280

約数和(自身を除く): 231460365

約数列:

[1, 3, 5, 9, 15, 19, 31, 45, 57, 93, 95, 155, 171, 279, 285, 465, 589, 855, 1395, 1767, 2945, 5301, 8835, 9883, 26505, 29649, 49415, 88947, 148245, 187777, 306373, 444735, 563331, 919119, 938885, 1531865, 1689993, 2757357, 2816655, 4595595, 5821087, 8449965, 13786785, 17463261, 29105435, 52389783, 87316305, 261948915]

約数ペア:

[(1, 261948915), (3, 87316305), (5, 52389783), (9, 29105435), (15, 17463261), (19, 13786785), (31, 8449965), (45, 5821087), (57, 4595595), (93, 2816655), (95, 2757357), (155, 1689993), (171, 1531865), (279, 938885), (285, 919119), (465, 563331), (589, 444735), (855, 306373), (1395, 187777), (1767, 148245), (2945, 88947), (5301, 49415), (8835, 29649), (9883, 26505)]