205898490

素因数分解:

$2^1\times 3^3\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{197}}^1$

素因数の和:306

約数の個数: 192

約数和(自身を含む): 650073600

約数和(自身を除く): 444175110

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 49, 54, 63, 70, 79, 90, 98, 105, 126, 135, 147, 158, 189, 197, 210, 237, 245, 270, 294, 315, 378, 394, 395, 441, 474, 490, 553, 591, 630, 711, 735, 790, 882, 945, 985, 1106, 1182, 1185, 1323, 1379, 1422, 1470, 1659, 1773, 1890, 1970, 2133, 2205, 2370, 2646, 2758, 2765, 2955, 3318, 3546, 3555, 3871, 4137, 4266, 4410, 4977, 5319, 5530, 5910, 6615, 6895, 7110, 7742, 8274, 8295, 8865, 9653, 9954, 10638, 10665, 11613, 12411, 13230, 13790, 14931, 15563, 16590, 17730, 19306, 19355, 20685, 21330, 23226, 24822, 24885, 26595, 28959, 29862, 31126, 34839, 37233, 38710, 41370, 46689, 48265, 49770, 53190, 57918, 58065, 62055, 69678, 74466, 74655, 77815, 86877, 93378, 96530, 104517, 108941, 116130, 124110, 140067, 144795, 149310, 155630, 173754, 174195, 186165, 209034, 217882, 233445, 260631, 280134, 289590, 326823, 348390, 372330, 420201, 434385, 466890, 521262, 522585, 544705, 653646, 700335, 762587, 840402, 868770, 980469, 1045170, 1089410, 1303155, 1400670, 1525174, 1634115, 1960938, 2101005, 2287761, 2606310, 2941407, 3268230, 3812935, 4202010, 4575522, 4902345, 5882814, 6863283, 7625870, 9804690, 11438805, 13726566, 14707035, 20589849, 22877610, 29414070, 34316415, 41179698, 68632830, 102949245, 205898490]

約数ペア:

[(1, 205898490), (2, 102949245), (3, 68632830), (5, 41179698), (6, 34316415), (7, 29414070), (9, 22877610), (10, 20589849), (14, 14707035), (15, 13726566), (18, 11438805), (21, 9804690), (27, 7625870), (30, 6863283), (35, 5882814), (42, 4902345), (45, 4575522), (49, 4202010), (54, 3812935), (63, 3268230), (70, 2941407), (79, 2606310), (90, 2287761), (98, 2101005), (105, 1960938), (126, 1634115), (135, 1525174), (147, 1400670), (158, 1303155), (189, 1089410), (197, 1045170), (210, 980469), (237, 868770), (245, 840402), (270, 762587), (294, 700335), (315, 653646), (378, 544705), (394, 522585), (395, 521262), (441, 466890), (474, 434385), (490, 420201), (553, 372330), (591, 348390), (630, 326823), (711, 289590), (735, 280134), (790, 260631), (882, 233445), (945, 217882), (985, 209034), (1106, 186165), (1182, 174195), (1185, 173754), (1323, 155630), (1379, 149310), (1422, 144795), (1470, 140067), (1659, 124110), (1773, 116130), (1890, 108941), (1970, 104517), (2133, 96530), (2205, 93378), (2370, 86877), (2646, 77815), (2758, 74655), (2765, 74466), (2955, 69678), (3318, 62055), (3546, 58065), (3555, 57918), (3871, 53190), (4137, 49770), (4266, 48265), (4410, 46689), (4977, 41370), (5319, 38710), (5530, 37233), (5910, 34839), (6615, 31126), (6895, 29862), (7110, 28959), (7742, 26595), (8274, 24885), (8295, 24822), (8865, 23226), (9653, 21330), (9954, 20685), (10638, 19355), (10665, 19306), (11613, 17730), (12411, 16590), (13230, 15563), (13790, 14931)]