18781440

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:164

約数の個数: 144

約数和(自身を含む): 61712448

約数和(自身を除く): 42931008

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 67, 73, 80, 96, 120, 128, 134, 146, 160, 192, 201, 219, 240, 256, 268, 292, 320, 335, 365, 384, 402, 438, 480, 536, 584, 640, 670, 730, 768, 804, 876, 960, 1005, 1072, 1095, 1168, 1280, 1340, 1460, 1608, 1752, 1920, 2010, 2144, 2190, 2336, 2680, 2920, 3216, 3504, 3840, 4020, 4288, 4380, 4672, 4891, 5360, 5840, 6432, 7008, 8040, 8576, 8760, 9344, 9782, 10720, 11680, 12864, 14016, 14673, 16080, 17152, 17520, 18688, 19564, 21440, 23360, 24455, 25728, 28032, 29346, 32160, 35040, 39128, 42880, 46720, 48910, 51456, 56064, 58692, 64320, 70080, 73365, 78256, 85760, 93440, 97820, 117384, 128640, 140160, 146730, 156512, 195640, 234768, 257280, 280320, 293460, 313024, 391280, 469536, 586920, 626048, 782560, 939072, 1173840, 1252096, 1565120, 1878144, 2347680, 3130240, 3756288, 4695360, 6260480, 9390720, 18781440]

約数ペア:

[(1, 18781440), (2, 9390720), (3, 6260480), (4, 4695360), (5, 3756288), (6, 3130240), (8, 2347680), (10, 1878144), (12, 1565120), (15, 1252096), (16, 1173840), (20, 939072), (24, 782560), (30, 626048), (32, 586920), (40, 469536), (48, 391280), (60, 313024), (64, 293460), (67, 280320), (73, 257280), (80, 234768), (96, 195640), (120, 156512), (128, 146730), (134, 140160), (146, 128640), (160, 117384), (192, 97820), (201, 93440), (219, 85760), (240, 78256), (256, 73365), (268, 70080), (292, 64320), (320, 58692), (335, 56064), (365, 51456), (384, 48910), (402, 46720), (438, 42880), (480, 39128), (536, 35040), (584, 32160), (640, 29346), (670, 28032), (730, 25728), (768, 24455), (804, 23360), (876, 21440), (960, 19564), (1005, 18688), (1072, 17520), (1095, 17152), (1168, 16080), (1280, 14673), (1340, 14016), (1460, 12864), (1608, 11680), (1752, 10720), (1920, 9782), (2010, 9344), (2144, 8760), (2190, 8576), (2336, 8040), (2680, 7008), (2920, 6432), (3216, 5840), (3504, 5360), (3840, 4891), (4020, 4672), (4288, 4380)]