388787120

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{223}}^1$

素因数の和:323

約数の個数: 160

約数和(自身を含む): 1013268480

約数和(自身を除く): 624481360

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, 223, 248, 296, 304, 310, 370, 380, 446, 496, 589, 592, 620, 703, 740, 760, 892, 1115, 1147, 1178, 1240, 1406, 1480, 1520, 1784, 2230, 2294, 2356, 2480, 2812, 2945, 2960, 3515, 3568, 4237, 4460, 4588, 4712, 5624, 5735, 5890, 6913, 7030, 8251, 8474, 8920, 9176, 9424, 11248, 11470, 11780, 13826, 14060, 16502, 16948, 17840, 18352, 21185, 21793, 22940, 23560, 27652, 28120, 33004, 33896, 34565, 41255, 42370, 43586, 45880, 47120, 55304, 56240, 66008, 67792, 69130, 82510, 84740, 87172, 91760, 108965, 110608, 131347, 132016, 138260, 156769, 165020, 169480, 174344, 217930, 255781, 262694, 276520, 313538, 330040, 338960, 348688, 435860, 511562, 525388, 553040, 627076, 656735, 660080, 783845, 871720, 1023124, 1050776, 1254152, 1278905, 1313470, 1567690, 1743440, 2046248, 2101552, 2508304, 2557810, 2626940, 3135380, 4092496, 4859839, 5115620, 5253880, 6270760, 9719678, 10231240, 10507760, 12541520, 19439356, 20462480, 24299195, 38878712, 48598390, 77757424, 97196780, 194393560, 388787120]

約数ペア:

[(1, 388787120), (2, 194393560), (4, 97196780), (5, 77757424), (8, 48598390), (10, 38878712), (16, 24299195), (19, 20462480), (20, 19439356), (31, 12541520), (37, 10507760), (38, 10231240), (40, 9719678), (62, 6270760), (74, 5253880), (76, 5115620), (80, 4859839), (95, 4092496), (124, 3135380), (148, 2626940), (152, 2557810), (155, 2508304), (185, 2101552), (190, 2046248), (223, 1743440), (248, 1567690), (296, 1313470), (304, 1278905), (310, 1254152), (370, 1050776), (380, 1023124), (446, 871720), (496, 783845), (589, 660080), (592, 656735), (620, 627076), (703, 553040), (740, 525388), (760, 511562), (892, 435860), (1115, 348688), (1147, 338960), (1178, 330040), (1240, 313538), (1406, 276520), (1480, 262694), (1520, 255781), (1784, 217930), (2230, 174344), (2294, 169480), (2356, 165020), (2480, 156769), (2812, 138260), (2945, 132016), (2960, 131347), (3515, 110608), (3568, 108965), (4237, 91760), (4460, 87172), (4588, 84740), (4712, 82510), (5624, 69130), (5735, 67792), (5890, 66008), (6913, 56240), (7030, 55304), (8251, 47120), (8474, 45880), (8920, 43586), (9176, 42370), (9424, 41255), (11248, 34565), (11470, 33896), (11780, 33004), (13826, 28120), (14060, 27652), (16502, 23560), (16948, 22940), (17840, 21793), (18352, 21185)]