18717280

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:212

約数の個数: 96

約数和(自身を含む): 47900160

約数和(自身を除く): 29182880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 47, 76, 80, 94, 95, 131, 152, 160, 188, 190, 235, 262, 304, 376, 380, 470, 524, 608, 655, 752, 760, 893, 940, 1048, 1310, 1504, 1520, 1786, 1880, 2096, 2489, 2620, 3040, 3572, 3760, 4192, 4465, 4978, 5240, 6157, 7144, 7520, 8930, 9956, 10480, 12314, 12445, 14288, 17860, 19912, 20960, 24628, 24890, 28576, 30785, 35720, 39824, 49256, 49780, 61570, 71440, 79648, 98512, 99560, 116983, 123140, 142880, 197024, 199120, 233966, 246280, 398240, 467932, 492560, 584915, 935864, 985120, 1169830, 1871728, 2339660, 3743456, 4679320, 9358640, 18717280]

約数ペア:

[(1, 18717280), (2, 9358640), (4, 4679320), (5, 3743456), (8, 2339660), (10, 1871728), (16, 1169830), (19, 985120), (20, 935864), (32, 584915), (38, 492560), (40, 467932), (47, 398240), (76, 246280), (80, 233966), (94, 199120), (95, 197024), (131, 142880), (152, 123140), (160, 116983), (188, 99560), (190, 98512), (235, 79648), (262, 71440), (304, 61570), (376, 49780), (380, 49256), (470, 39824), (524, 35720), (608, 30785), (655, 28576), (752, 24890), (760, 24628), (893, 20960), (940, 19912), (1048, 17860), (1310, 14288), (1504, 12445), (1520, 12314), (1786, 10480), (1880, 9956), (2096, 8930), (2489, 7520), (2620, 7144), (3040, 6157), (3572, 5240), (3760, 4978), (4192, 4465)]