28170320

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{307}}^1$

素因数の和:388

約数の個数: 80

約数和(自身を含む): 69662208

約数和(自身を除く): 41491888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 37, 40, 62, 74, 80, 124, 148, 155, 185, 248, 296, 307, 310, 370, 496, 592, 614, 620, 740, 1147, 1228, 1240, 1480, 1535, 2294, 2456, 2480, 2960, 3070, 4588, 4912, 5735, 6140, 9176, 9517, 11359, 11470, 12280, 18352, 19034, 22718, 22940, 24560, 38068, 45436, 45880, 47585, 56795, 76136, 90872, 91760, 95170, 113590, 152272, 181744, 190340, 227180, 352129, 380680, 454360, 704258, 761360, 908720, 1408516, 1760645, 2817032, 3521290, 5634064, 7042580, 14085160, 28170320]

約数ペア:

[(1, 28170320), (2, 14085160), (4, 7042580), (5, 5634064), (8, 3521290), (10, 2817032), (16, 1760645), (20, 1408516), (31, 908720), (37, 761360), (40, 704258), (62, 454360), (74, 380680), (80, 352129), (124, 227180), (148, 190340), (155, 181744), (185, 152272), (248, 113590), (296, 95170), (307, 91760), (310, 90872), (370, 76136), (496, 56795), (592, 47585), (614, 45880), (620, 45436), (740, 38068), (1147, 24560), (1228, 22940), (1240, 22718), (1480, 19034), (1535, 18352), (2294, 12280), (2456, 11470), (2480, 11359), (2960, 9517), (3070, 9176), (4588, 6140), (4912, 5735)]