28534415

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1$

素因数の和:97

約数の個数: 72

約数和(自身を含む): 47037312

約数和(自身を除く): 18502897

約数列:

[1, 5, 7, 13, 17, 31, 35, 49, 65, 85, 91, 119, 155, 217, 221, 245, 289, 403, 455, 527, 595, 637, 833, 1085, 1105, 1445, 1519, 1547, 2015, 2023, 2635, 2821, 3185, 3689, 3757, 4165, 6851, 7595, 7735, 8959, 10115, 10829, 14105, 14161, 18445, 18785, 19747, 25823, 26299, 34255, 44795, 47957, 54145, 62713, 70805, 98735, 116467, 129115, 131495, 184093, 239785, 313565, 335699, 438991, 582335, 815269, 920465, 1678495, 2194955, 4076345, 5706883, 28534415]

約数ペア:

[(1, 28534415), (5, 5706883), (7, 4076345), (13, 2194955), (17, 1678495), (31, 920465), (35, 815269), (49, 582335), (65, 438991), (85, 335699), (91, 313565), (119, 239785), (155, 184093), (217, 131495), (221, 129115), (245, 116467), (289, 98735), (403, 70805), (455, 62713), (527, 54145), (595, 47957), (637, 44795), (833, 34255), (1085, 26299), (1105, 25823), (1445, 19747), (1519, 18785), (1547, 18445), (2015, 14161), (2023, 14105), (2635, 10829), (2821, 10115), (3185, 8959), (3689, 7735), (3757, 7595), (4165, 6851)]