257550720

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{19163}}^1$

素因数の和:19192

約数の個数: 128

約数和(自身を含む): 938269440

約数和(自身を除く): 680718720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 840, 896, 960, 1120, 1344, 1680, 1920, 2240, 2688, 3360, 4480, 6720, 13440, 19163, 38326, 57489, 76652, 95815, 114978, 134141, 153304, 191630, 229956, 268282, 287445, 306608, 383260, 402423, 459912, 536564, 574890, 613216, 670705, 766520, 804846, 919824, 1073128, 1149780, 1226432, 1341410, 1533040, 1609692, 1839648, 2012115, 2146256, 2299560, 2452864, 2682820, 3066080, 3219384, 3679296, 4024230, 4292512, 4599120, 5365640, 6132160, 6438768, 7358592, 8048460, 8585024, 9198240, 10731280, 12264320, 12877536, 16096920, 17170048, 18396480, 21462560, 25755072, 32193840, 36792960, 42925120, 51510144, 64387680, 85850240, 128775360, 257550720]

約数ペア:

[(1, 257550720), (2, 128775360), (3, 85850240), (4, 64387680), (5, 51510144), (6, 42925120), (7, 36792960), (8, 32193840), (10, 25755072), (12, 21462560), (14, 18396480), (15, 17170048), (16, 16096920), (20, 12877536), (21, 12264320), (24, 10731280), (28, 9198240), (30, 8585024), (32, 8048460), (35, 7358592), (40, 6438768), (42, 6132160), (48, 5365640), (56, 4599120), (60, 4292512), (64, 4024230), (70, 3679296), (80, 3219384), (84, 3066080), (96, 2682820), (105, 2452864), (112, 2299560), (120, 2146256), (128, 2012115), (140, 1839648), (160, 1609692), (168, 1533040), (192, 1341410), (210, 1226432), (224, 1149780), (240, 1073128), (280, 919824), (320, 804846), (336, 766520), (384, 670705), (420, 613216), (448, 574890), (480, 536564), (560, 459912), (640, 402423), (672, 383260), (840, 306608), (896, 287445), (960, 268282), (1120, 229956), (1344, 191630), (1680, 153304), (1920, 134141), (2240, 114978), (2688, 95815), (3360, 76652), (4480, 57489), (6720, 38326), (13440, 19163)]