128974725

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^2$

素因数の和:140

約数の個数: 108

約数和(自身を含む): 266637696

約数和(自身を除く): 137662971

約数列:

[1, 3, 5, 9, 11, 15, 25, 31, 33, 41, 45, 55, 75, 93, 99, 123, 155, 165, 205, 225, 275, 279, 341, 369, 451, 465, 495, 615, 775, 825, 1023, 1025, 1271, 1353, 1395, 1681, 1705, 1845, 2255, 2325, 2475, 3069, 3075, 3813, 4059, 5043, 5115, 6355, 6765, 6975, 8405, 8525, 9225, 11275, 11439, 13981, 15129, 15345, 18491, 19065, 20295, 25215, 25575, 31775, 33825, 41943, 42025, 52111, 55473, 57195, 69905, 75645, 76725, 92455, 95325, 101475, 125829, 126075, 156333, 166419, 209715, 260555, 277365, 285975, 349525, 378225, 462275, 468999, 573221, 629145, 781665, 832095, 1048575, 1302775, 1386825, 1719663, 2344995, 2866105, 3145725, 3908325, 4160475, 5158989, 8598315, 11724975, 14330525, 25794945, 42991575, 128974725]

約数ペア:

[(1, 128974725), (3, 42991575), (5, 25794945), (9, 14330525), (11, 11724975), (15, 8598315), (25, 5158989), (31, 4160475), (33, 3908325), (41, 3145725), (45, 2866105), (55, 2344995), (75, 1719663), (93, 1386825), (99, 1302775), (123, 1048575), (155, 832095), (165, 781665), (205, 629145), (225, 573221), (275, 468999), (279, 462275), (341, 378225), (369, 349525), (451, 285975), (465, 277365), (495, 260555), (615, 209715), (775, 166419), (825, 156333), (1023, 126075), (1025, 125829), (1271, 101475), (1353, 95325), (1395, 92455), (1681, 76725), (1705, 75645), (1845, 69905), (2255, 57195), (2325, 55473), (2475, 52111), (3069, 42025), (3075, 41943), (3813, 33825), (4059, 31775), (5043, 25575), (5115, 25215), (6355, 20295), (6765, 19065), (6975, 18491), (8405, 15345), (8525, 15129), (9225, 13981), (11275, 11439)]