402275840

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1$

素因数の和:228

約数の個数: 160

約数和(自身を含む): 1030005504

約数和(自身を除く): 627729664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 37, 40, 62, 64, 74, 80, 124, 128, 137, 148, 155, 160, 185, 248, 256, 274, 296, 310, 320, 370, 496, 512, 548, 592, 620, 640, 685, 740, 992, 1096, 1147, 1184, 1240, 1280, 1370, 1480, 1984, 2192, 2294, 2368, 2480, 2560, 2740, 2960, 3968, 4247, 4384, 4588, 4736, 4960, 5069, 5480, 5735, 5920, 7936, 8494, 8768, 9176, 9472, 9920, 10138, 10960, 11470, 11840, 15872, 16988, 17536, 18352, 18944, 19840, 20276, 21235, 21920, 22940, 23680, 25345, 33976, 35072, 36704, 39680, 40552, 42470, 43840, 45880, 47360, 50690, 67952, 70144, 73408, 79360, 81104, 84940, 87680, 91760, 94720, 101380, 135904, 146816, 157139, 162208, 169880, 175360, 183520, 202760, 271808, 293632, 314278, 324416, 339760, 350720, 367040, 405520, 543616, 587264, 628556, 648832, 679520, 734080, 785695, 811040, 1087232, 1257112, 1297664, 1359040, 1468160, 1571390, 1622080, 2174464, 2514224, 2595328, 2718080, 2936320, 3142780, 3244160, 5028448, 5436160, 6285560, 6488320, 10056896, 10872320, 12571120, 12976640, 20113792, 25142240, 40227584, 50284480, 80455168, 100568960, 201137920, 402275840]

約数ペア:

[(1, 402275840), (2, 201137920), (4, 100568960), (5, 80455168), (8, 50284480), (10, 40227584), (16, 25142240), (20, 20113792), (31, 12976640), (32, 12571120), (37, 10872320), (40, 10056896), (62, 6488320), (64, 6285560), (74, 5436160), (80, 5028448), (124, 3244160), (128, 3142780), (137, 2936320), (148, 2718080), (155, 2595328), (160, 2514224), (185, 2174464), (248, 1622080), (256, 1571390), (274, 1468160), (296, 1359040), (310, 1297664), (320, 1257112), (370, 1087232), (496, 811040), (512, 785695), (548, 734080), (592, 679520), (620, 648832), (640, 628556), (685, 587264), (740, 543616), (992, 405520), (1096, 367040), (1147, 350720), (1184, 339760), (1240, 324416), (1280, 314278), (1370, 293632), (1480, 271808), (1984, 202760), (2192, 183520), (2294, 175360), (2368, 169880), (2480, 162208), (2560, 157139), (2740, 146816), (2960, 135904), (3968, 101380), (4247, 94720), (4384, 91760), (4588, 87680), (4736, 84940), (4960, 81104), (5069, 79360), (5480, 73408), (5735, 70144), (5920, 67952), (7936, 50690), (8494, 47360), (8768, 45880), (9176, 43840), (9472, 42470), (9920, 40552), (10138, 39680), (10960, 36704), (11470, 35072), (11840, 33976), (15872, 25345), (16988, 23680), (17536, 22940), (18352, 21920), (18944, 21235), (19840, 20276)]