638193280

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1693}}^1$

素因数の和:1762

約数の個数: 128

約数和(自身を含む): 1658764800

約数和(自身を除く): 1020571520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 32, 38, 40, 62, 64, 76, 80, 95, 124, 128, 152, 155, 160, 190, 248, 304, 310, 320, 380, 496, 589, 608, 620, 640, 760, 992, 1178, 1216, 1240, 1520, 1693, 1984, 2356, 2432, 2480, 2945, 3040, 3386, 3968, 4712, 4960, 5890, 6080, 6772, 8465, 9424, 9920, 11780, 12160, 13544, 16930, 18848, 19840, 23560, 27088, 32167, 33860, 37696, 47120, 52483, 54176, 64334, 67720, 75392, 94240, 104966, 108352, 128668, 135440, 160835, 188480, 209932, 216704, 257336, 262415, 270880, 321670, 376960, 419864, 514672, 524830, 541760, 643340, 839728, 997177, 1029344, 1049660, 1083520, 1286680, 1679456, 1994354, 2058688, 2099320, 2573360, 3358912, 3988708, 4117376, 4198640, 4985885, 5146720, 6717824, 7977416, 8397280, 9971770, 10293440, 15954832, 16794560, 19943540, 20586880, 31909664, 33589120, 39887080, 63819328, 79774160, 127638656, 159548320, 319096640, 638193280]

約数ペア:

[(1, 638193280), (2, 319096640), (4, 159548320), (5, 127638656), (8, 79774160), (10, 63819328), (16, 39887080), (19, 33589120), (20, 31909664), (31, 20586880), (32, 19943540), (38, 16794560), (40, 15954832), (62, 10293440), (64, 9971770), (76, 8397280), (80, 7977416), (95, 6717824), (124, 5146720), (128, 4985885), (152, 4198640), (155, 4117376), (160, 3988708), (190, 3358912), (248, 2573360), (304, 2099320), (310, 2058688), (320, 1994354), (380, 1679456), (496, 1286680), (589, 1083520), (608, 1049660), (620, 1029344), (640, 997177), (760, 839728), (992, 643340), (1178, 541760), (1216, 524830), (1240, 514672), (1520, 419864), (1693, 376960), (1984, 321670), (2356, 270880), (2432, 262415), (2480, 257336), (2945, 216704), (3040, 209932), (3386, 188480), (3968, 160835), (4712, 135440), (4960, 128668), (5890, 108352), (6080, 104966), (6772, 94240), (8465, 75392), (9424, 67720), (9920, 64334), (11780, 54176), (12160, 52483), (13544, 47120), (16930, 37696), (18848, 33860), (19840, 32167), (23560, 27088)]