405157600

素因数分解:

$2^5\times 5^2\times {\mathrm{17}}^1\times {\mathrm{31}}^3$

素因数の和:130

約数の個数: 144

約数和(自身を含む): 1082180736

約数和(自身を除く): 677023136

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 31, 32, 34, 40, 50, 62, 68, 80, 85, 100, 124, 136, 155, 160, 170, 200, 248, 272, 310, 340, 400, 425, 496, 527, 544, 620, 680, 775, 800, 850, 961, 992, 1054, 1240, 1360, 1550, 1700, 1922, 2108, 2480, 2635, 2720, 3100, 3400, 3844, 4216, 4805, 4960, 5270, 6200, 6800, 7688, 8432, 9610, 10540, 12400, 13175, 13600, 15376, 16337, 16864, 19220, 21080, 24025, 24800, 26350, 29791, 30752, 32674, 38440, 42160, 48050, 52700, 59582, 65348, 76880, 81685, 84320, 96100, 105400, 119164, 130696, 148955, 153760, 163370, 192200, 210800, 238328, 261392, 297910, 326740, 384400, 408425, 421600, 476656, 506447, 522784, 595820, 653480, 744775, 768800, 816850, 953312, 1012894, 1191640, 1306960, 1489550, 1633700, 2025788, 2383280, 2532235, 2613920, 2979100, 3267400, 4051576, 4766560, 5064470, 5958200, 6534800, 8103152, 10128940, 11916400, 12661175, 13069600, 16206304, 20257880, 23832800, 25322350, 40515760, 50644700, 81031520, 101289400, 202578800, 405157600]

約数ペア:

[(1, 405157600), (2, 202578800), (4, 101289400), (5, 81031520), (8, 50644700), (10, 40515760), (16, 25322350), (17, 23832800), (20, 20257880), (25, 16206304), (31, 13069600), (32, 12661175), (34, 11916400), (40, 10128940), (50, 8103152), (62, 6534800), (68, 5958200), (80, 5064470), (85, 4766560), (100, 4051576), (124, 3267400), (136, 2979100), (155, 2613920), (160, 2532235), (170, 2383280), (200, 2025788), (248, 1633700), (272, 1489550), (310, 1306960), (340, 1191640), (400, 1012894), (425, 953312), (496, 816850), (527, 768800), (544, 744775), (620, 653480), (680, 595820), (775, 522784), (800, 506447), (850, 476656), (961, 421600), (992, 408425), (1054, 384400), (1240, 326740), (1360, 297910), (1550, 261392), (1700, 238328), (1922, 210800), (2108, 192200), (2480, 163370), (2635, 153760), (2720, 148955), (3100, 130696), (3400, 119164), (3844, 105400), (4216, 96100), (4805, 84320), (4960, 81685), (5270, 76880), (6200, 65348), (6800, 59582), (7688, 52700), (8432, 48050), (9610, 42160), (10540, 38440), (12400, 32674), (13175, 30752), (13600, 29791), (15376, 26350), (16337, 24800), (16864, 24025), (19220, 21080)]