20123289725

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{307}}^1\times {\mathrm{2003}}^1$

素因数の和:2355

約数の個数: 96

約数和(自身を含む): 33063883776

約数和(自身を除く): 12940594051

約数列:

[1, 5, 7, 11, 17, 25, 35, 55, 77, 85, 119, 175, 187, 275, 307, 385, 425, 595, 935, 1309, 1535, 1925, 2003, 2149, 2975, 3377, 4675, 5219, 6545, 7675, 10015, 10745, 14021, 16885, 22033, 23639, 26095, 32725, 34051, 36533, 50075, 53725, 57409, 70105, 84425, 110165, 118195, 130475, 154231, 170255, 182665, 238357, 287045, 350525, 374561, 401863, 550825, 590975, 614921, 771155, 851275, 913325, 1191785, 1435225, 1872805, 2009315, 2621927, 3074605, 3855775, 4304447, 5958925, 6764131, 9364025, 10046575, 10453657, 13109635, 15373025, 21522235, 33820655, 47348917, 52268285, 65548175, 73175599, 107611175, 114990227, 169103275, 236744585, 261341425, 365877995, 574951135, 804931589, 1183722925, 1829389975, 2874755675, 4024657945, 20123289725]

約数ペア:

[(1, 20123289725), (5, 4024657945), (7, 2874755675), (11, 1829389975), (17, 1183722925), (25, 804931589), (35, 574951135), (55, 365877995), (77, 261341425), (85, 236744585), (119, 169103275), (175, 114990227), (187, 107611175), (275, 73175599), (307, 65548175), (385, 52268285), (425, 47348917), (595, 33820655), (935, 21522235), (1309, 15373025), (1535, 13109635), (1925, 10453657), (2003, 10046575), (2149, 9364025), (2975, 6764131), (3377, 5958925), (4675, 4304447), (5219, 3855775), (6545, 3074605), (7675, 2621927), (10015, 2009315), (10745, 1872805), (14021, 1435225), (16885, 1191785), (22033, 913325), (23639, 851275), (26095, 771155), (32725, 614921), (34051, 590975), (36533, 550825), (50075, 401863), (53725, 374561), (57409, 350525), (70105, 287045), (84425, 238357), (110165, 182665), (118195, 170255), (130475, 154231)]