204857145

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1$

素因数の和:251

約数の個数: 96

約数和(自身を含む): 395366400

約数和(自身を除く): 190509255

約数列:

[1, 3, 5, 9, 15, 19, 31, 45, 57, 59, 93, 95, 131, 155, 171, 177, 279, 285, 295, 393, 465, 531, 589, 655, 855, 885, 1121, 1179, 1395, 1767, 1829, 1965, 2489, 2655, 2945, 3363, 4061, 5301, 5487, 5605, 5895, 7467, 7729, 8835, 9145, 10089, 12183, 12445, 16461, 16815, 20305, 22401, 23187, 26505, 27435, 34751, 36549, 37335, 38645, 50445, 60915, 69561, 77159, 82305, 104253, 112005, 115935, 146851, 173755, 182745, 231477, 239599, 312759, 347805, 385795, 440553, 521265, 694431, 718797, 734255, 1157385, 1197995, 1321659, 1563795, 2156391, 2202765, 3472155, 3593985, 4552381, 6608295, 10781955, 13657143, 22761905, 40971429, 68285715, 204857145]

約数ペア:

[(1, 204857145), (3, 68285715), (5, 40971429), (9, 22761905), (15, 13657143), (19, 10781955), (31, 6608295), (45, 4552381), (57, 3593985), (59, 3472155), (93, 2202765), (95, 2156391), (131, 1563795), (155, 1321659), (171, 1197995), (177, 1157385), (279, 734255), (285, 718797), (295, 694431), (393, 521265), (465, 440553), (531, 385795), (589, 347805), (655, 312759), (855, 239599), (885, 231477), (1121, 182745), (1179, 173755), (1395, 146851), (1767, 115935), (1829, 112005), (1965, 104253), (2489, 82305), (2655, 77159), (2945, 69561), (3363, 60915), (4061, 50445), (5301, 38645), (5487, 37335), (5605, 36549), (5895, 34751), (7467, 27435), (7729, 26505), (8835, 23187), (9145, 22401), (10089, 20305), (12183, 16815), (12445, 16461)]