262503040

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:282

約数の個数: 128

約数和(自身を含む): 659197440

約数和(自身を除く): 396694400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 101, 124, 128, 131, 155, 160, 202, 248, 262, 310, 320, 404, 496, 505, 524, 620, 640, 655, 808, 992, 1010, 1048, 1240, 1310, 1616, 1984, 2020, 2096, 2480, 2620, 3131, 3232, 3968, 4040, 4061, 4192, 4960, 5240, 6262, 6464, 8080, 8122, 8384, 9920, 10480, 12524, 12928, 13231, 15655, 16160, 16244, 16768, 19840, 20305, 20960, 25048, 26462, 31310, 32320, 32488, 40610, 41920, 50096, 52924, 62620, 64640, 64976, 66155, 81220, 83840, 100192, 105848, 125240, 129952, 132310, 162440, 200384, 211696, 250480, 259904, 264620, 324880, 400768, 410161, 423392, 500960, 519808, 529240, 649760, 820322, 846784, 1001920, 1058480, 1299520, 1640644, 1693568, 2003840, 2050805, 2116960, 2599040, 3281288, 4101610, 4233920, 6562576, 8203220, 8467840, 13125152, 16406440, 26250304, 32812880, 52500608, 65625760, 131251520, 262503040]

約数ペア:

[(1, 262503040), (2, 131251520), (4, 65625760), (5, 52500608), (8, 32812880), (10, 26250304), (16, 16406440), (20, 13125152), (31, 8467840), (32, 8203220), (40, 6562576), (62, 4233920), (64, 4101610), (80, 3281288), (101, 2599040), (124, 2116960), (128, 2050805), (131, 2003840), (155, 1693568), (160, 1640644), (202, 1299520), (248, 1058480), (262, 1001920), (310, 846784), (320, 820322), (404, 649760), (496, 529240), (505, 519808), (524, 500960), (620, 423392), (640, 410161), (655, 400768), (808, 324880), (992, 264620), (1010, 259904), (1048, 250480), (1240, 211696), (1310, 200384), (1616, 162440), (1984, 132310), (2020, 129952), (2096, 125240), (2480, 105848), (2620, 100192), (3131, 83840), (3232, 81220), (3968, 66155), (4040, 64976), (4061, 64640), (4192, 62620), (4960, 52924), (5240, 50096), (6262, 41920), (6464, 40610), (8080, 32488), (8122, 32320), (8384, 31310), (9920, 26462), (10480, 25048), (12524, 20960), (12928, 20305), (13231, 19840), (15655, 16768), (16160, 16244)]