401320000

素因数分解:

$2^6\times 5^4\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:238

約数の個数: 140

約数和(自身を含む): 1015674880

約数和(自身を除く): 614354880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 79, 80, 100, 125, 127, 158, 160, 200, 250, 254, 316, 320, 395, 400, 500, 508, 625, 632, 635, 790, 800, 1000, 1016, 1250, 1264, 1270, 1580, 1600, 1975, 2000, 2032, 2500, 2528, 2540, 3160, 3175, 3950, 4000, 4064, 5000, 5056, 5080, 6320, 6350, 7900, 8000, 8128, 9875, 10000, 10033, 10160, 12640, 12700, 15800, 15875, 19750, 20000, 20066, 20320, 25280, 25400, 31600, 31750, 39500, 40000, 40132, 40640, 49375, 50165, 50800, 63200, 63500, 79000, 79375, 80264, 98750, 100330, 101600, 126400, 127000, 158000, 158750, 160528, 197500, 200660, 203200, 250825, 254000, 316000, 317500, 321056, 395000, 401320, 501650, 508000, 632000, 635000, 642112, 790000, 802640, 1003300, 1016000, 1254125, 1270000, 1580000, 1605280, 2006600, 2508250, 2540000, 3160000, 3210560, 4013200, 5016500, 5080000, 6270625, 8026400, 10033000, 12541250, 16052800, 20066000, 25082500, 40132000, 50165000, 80264000, 100330000, 200660000, 401320000]

約数ペア:

[(1, 401320000), (2, 200660000), (4, 100330000), (5, 80264000), (8, 50165000), (10, 40132000), (16, 25082500), (20, 20066000), (25, 16052800), (32, 12541250), (40, 10033000), (50, 8026400), (64, 6270625), (79, 5080000), (80, 5016500), (100, 4013200), (125, 3210560), (127, 3160000), (158, 2540000), (160, 2508250), (200, 2006600), (250, 1605280), (254, 1580000), (316, 1270000), (320, 1254125), (395, 1016000), (400, 1003300), (500, 802640), (508, 790000), (625, 642112), (632, 635000), (635, 632000), (790, 508000), (800, 501650), (1000, 401320), (1016, 395000), (1250, 321056), (1264, 317500), (1270, 316000), (1580, 254000), (1600, 250825), (1975, 203200), (2000, 200660), (2032, 197500), (2500, 160528), (2528, 158750), (2540, 158000), (3160, 127000), (3175, 126400), (3950, 101600), (4000, 100330), (4064, 98750), (5000, 80264), (5056, 79375), (5080, 79000), (6320, 63500), (6350, 63200), (7900, 50800), (8000, 50165), (8128, 49375), (9875, 40640), (10000, 40132), (10033, 40000), (10160, 39500), (12640, 31750), (12700, 31600), (15800, 25400), (15875, 25280), (19750, 20320), (20000, 20066)]