72878320

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1307}}^1$

素因数の和:1378

約数の個数: 80

約数和(自身を含む): 183925728

約数和(自身を除く): 111047408

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 41, 68, 80, 82, 85, 136, 164, 170, 205, 272, 328, 340, 410, 656, 680, 697, 820, 1307, 1360, 1394, 1640, 2614, 2788, 3280, 3485, 5228, 5576, 6535, 6970, 10456, 11152, 13070, 13940, 20912, 22219, 26140, 27880, 44438, 52280, 53587, 55760, 88876, 104560, 107174, 111095, 177752, 214348, 222190, 267935, 355504, 428696, 444380, 535870, 857392, 888760, 910979, 1071740, 1777520, 1821958, 2143480, 3643916, 4286960, 4554895, 7287832, 9109790, 14575664, 18219580, 36439160, 72878320]

約数ペア:

[(1, 72878320), (2, 36439160), (4, 18219580), (5, 14575664), (8, 9109790), (10, 7287832), (16, 4554895), (17, 4286960), (20, 3643916), (34, 2143480), (40, 1821958), (41, 1777520), (68, 1071740), (80, 910979), (82, 888760), (85, 857392), (136, 535870), (164, 444380), (170, 428696), (205, 355504), (272, 267935), (328, 222190), (340, 214348), (410, 177752), (656, 111095), (680, 107174), (697, 104560), (820, 88876), (1307, 55760), (1360, 53587), (1394, 52280), (1640, 44438), (2614, 27880), (2788, 26140), (3280, 22219), (3485, 20912), (5228, 13940), (5576, 13070), (6535, 11152), (6970, 10456)]