64507280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^2$

素因数の和:137

約数の個数: 120

約数和(自身を含む): 167489280

約数和(自身を除く): 102982000

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 37, 38, 40, 62, 74, 76, 80, 95, 124, 148, 152, 155, 185, 190, 248, 296, 304, 310, 370, 380, 496, 589, 592, 620, 703, 740, 760, 1147, 1178, 1240, 1369, 1406, 1480, 1520, 2294, 2356, 2480, 2738, 2812, 2945, 2960, 3515, 4588, 4712, 5476, 5624, 5735, 5890, 6845, 7030, 9176, 9424, 10952, 11248, 11470, 11780, 13690, 14060, 18352, 21793, 21904, 22940, 23560, 26011, 27380, 28120, 42439, 43586, 45880, 47120, 52022, 54760, 56240, 84878, 87172, 91760, 104044, 108965, 109520, 130055, 169756, 174344, 208088, 212195, 217930, 260110, 339512, 348688, 416176, 424390, 435860, 520220, 679024, 806341, 848780, 871720, 1040440, 1612682, 1697560, 1743440, 2080880, 3225364, 3395120, 4031705, 6450728, 8063410, 12901456, 16126820, 32253640, 64507280]

約数ペア:

[(1, 64507280), (2, 32253640), (4, 16126820), (5, 12901456), (8, 8063410), (10, 6450728), (16, 4031705), (19, 3395120), (20, 3225364), (31, 2080880), (37, 1743440), (38, 1697560), (40, 1612682), (62, 1040440), (74, 871720), (76, 848780), (80, 806341), (95, 679024), (124, 520220), (148, 435860), (152, 424390), (155, 416176), (185, 348688), (190, 339512), (248, 260110), (296, 217930), (304, 212195), (310, 208088), (370, 174344), (380, 169756), (496, 130055), (589, 109520), (592, 108965), (620, 104044), (703, 91760), (740, 87172), (760, 84878), (1147, 56240), (1178, 54760), (1240, 52022), (1369, 47120), (1406, 45880), (1480, 43586), (1520, 42439), (2294, 28120), (2356, 27380), (2480, 26011), (2738, 23560), (2812, 22940), (2945, 21904), (2960, 21793), (3515, 18352), (4588, 14060), (4712, 13690), (5476, 11780), (5624, 11470), (5735, 11248), (5890, 10952), (6845, 9424), (7030, 9176)]