15978240

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1$

素因数の和:119

約数の個数: 216

約数和(自身を含む): 58989840

約数和(自身を除く): 43011600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 32, 36, 38, 40, 45, 48, 57, 60, 64, 72, 73, 76, 80, 90, 95, 96, 114, 120, 128, 144, 146, 152, 160, 171, 180, 190, 192, 219, 228, 240, 256, 285, 288, 292, 304, 320, 342, 360, 365, 380, 384, 438, 456, 480, 570, 576, 584, 608, 640, 657, 684, 720, 730, 760, 768, 855, 876, 912, 960, 1095, 1140, 1152, 1168, 1216, 1280, 1314, 1368, 1387, 1440, 1460, 1520, 1710, 1752, 1824, 1920, 2190, 2280, 2304, 2336, 2432, 2628, 2736, 2774, 2880, 2920, 3040, 3285, 3420, 3504, 3648, 3840, 4161, 4380, 4560, 4672, 4864, 5256, 5472, 5548, 5760, 5840, 6080, 6570, 6840, 6935, 7008, 7296, 8322, 8760, 9120, 9344, 10512, 10944, 11096, 11520, 11680, 12160, 12483, 13140, 13680, 13870, 14016, 14592, 16644, 17520, 18240, 18688, 20805, 21024, 21888, 22192, 23360, 24320, 24966, 26280, 27360, 27740, 28032, 33288, 35040, 36480, 41610, 42048, 43776, 44384, 46720, 49932, 52560, 54720, 55480, 56064, 62415, 66576, 70080, 72960, 83220, 84096, 88768, 93440, 99864, 105120, 109440, 110960, 124830, 133152, 140160, 166440, 168192, 177536, 199728, 210240, 218880, 221920, 249660, 266304, 280320, 332880, 355072, 399456, 420480, 443840, 499320, 532608, 665760, 798912, 840960, 887680, 998640, 1065216, 1331520, 1597824, 1775360, 1997280, 2663040, 3195648, 3994560, 5326080, 7989120, 15978240]

約数ペア:

[(1, 15978240), (2, 7989120), (3, 5326080), (4, 3994560), (5, 3195648), (6, 2663040), (8, 1997280), (9, 1775360), (10, 1597824), (12, 1331520), (15, 1065216), (16, 998640), (18, 887680), (19, 840960), (20, 798912), (24, 665760), (30, 532608), (32, 499320), (36, 443840), (38, 420480), (40, 399456), (45, 355072), (48, 332880), (57, 280320), (60, 266304), (64, 249660), (72, 221920), (73, 218880), (76, 210240), (80, 199728), (90, 177536), (95, 168192), (96, 166440), (114, 140160), (120, 133152), (128, 124830), (144, 110960), (146, 109440), (152, 105120), (160, 99864), (171, 93440), (180, 88768), (190, 84096), (192, 83220), (219, 72960), (228, 70080), (240, 66576), (256, 62415), (285, 56064), (288, 55480), (292, 54720), (304, 52560), (320, 49932), (342, 46720), (360, 44384), (365, 43776), (380, 42048), (384, 41610), (438, 36480), (456, 35040), (480, 33288), (570, 28032), (576, 27740), (584, 27360), (608, 26280), (640, 24966), (657, 24320), (684, 23360), (720, 22192), (730, 21888), (760, 21024), (768, 20805), (855, 18688), (876, 18240), (912, 17520), (960, 16644), (1095, 14592), (1140, 14016), (1152, 13870), (1168, 13680), (1216, 13140), (1280, 12483), (1314, 12160), (1368, 11680), (1387, 11520), (1440, 11096), (1460, 10944), (1520, 10512), (1710, 9344), (1752, 9120), (1824, 8760), (1920, 8322), (2190, 7296), (2280, 7008), (2304, 6935), (2336, 6840), (2432, 6570), (2628, 6080), (2736, 5840), (2774, 5760), (2880, 5548), (2920, 5472), (3040, 5256), (3285, 4864), (3420, 4672), (3504, 4560), (3648, 4380), (3840, 4161)]