25440975

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{557}}^1$

素因数の和:609

約数の個数: 72

約数和(自身を含む): 53969760

約数和(自身を除く): 28528785

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 29, 35, 45, 63, 75, 87, 105, 145, 175, 203, 225, 261, 315, 435, 525, 557, 609, 725, 1015, 1305, 1575, 1671, 1827, 2175, 2785, 3045, 3899, 5013, 5075, 6525, 8355, 9135, 11697, 13925, 15225, 16153, 19495, 25065, 35091, 41775, 45675, 48459, 58485, 80765, 97475, 113071, 125325, 145377, 175455, 242295, 292425, 339213, 403825, 565355, 726885, 877275, 1017639, 1211475, 1696065, 2826775, 3634425, 5088195, 8480325, 25440975]

約数ペア:

[(1, 25440975), (3, 8480325), (5, 5088195), (7, 3634425), (9, 2826775), (15, 1696065), (21, 1211475), (25, 1017639), (29, 877275), (35, 726885), (45, 565355), (63, 403825), (75, 339213), (87, 292425), (105, 242295), (145, 175455), (175, 145377), (203, 125325), (225, 113071), (261, 97475), (315, 80765), (435, 58485), (525, 48459), (557, 45675), (609, 41775), (725, 35091), (1015, 25065), (1305, 19495), (1575, 16153), (1671, 15225), (1827, 13925), (2175, 11697), (2785, 9135), (3045, 8355), (3899, 6525), (5013, 5075)]