87390880

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{89}}^1$

素因数の和:159

約数の個数: 144

約数和(自身を含む): 233309160

約数和(自身を除く): 145918280

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 32, 34, 38, 40, 68, 76, 80, 85, 89, 95, 136, 152, 160, 170, 178, 190, 272, 304, 323, 340, 356, 361, 380, 445, 544, 608, 646, 680, 712, 722, 760, 890, 1292, 1360, 1424, 1444, 1513, 1520, 1615, 1691, 1780, 1805, 2584, 2720, 2848, 2888, 3026, 3040, 3230, 3382, 3560, 3610, 5168, 5776, 6052, 6137, 6460, 6764, 7120, 7220, 7565, 8455, 10336, 11552, 12104, 12274, 12920, 13528, 14240, 14440, 15130, 16910, 24208, 24548, 25840, 27056, 28747, 28880, 30260, 30685, 32129, 33820, 48416, 49096, 51680, 54112, 57494, 57760, 60520, 61370, 64258, 67640, 98192, 114988, 121040, 122740, 128516, 135280, 143735, 160645, 196384, 229976, 242080, 245480, 257032, 270560, 287470, 321290, 459952, 490960, 514064, 546193, 574940, 642580, 919904, 981920, 1028128, 1092386, 1149880, 1285160, 2184772, 2299760, 2570320, 2730965, 4369544, 4599520, 5140640, 5461930, 8739088, 10923860, 17478176, 21847720, 43695440, 87390880]

約数ペア:

[(1, 87390880), (2, 43695440), (4, 21847720), (5, 17478176), (8, 10923860), (10, 8739088), (16, 5461930), (17, 5140640), (19, 4599520), (20, 4369544), (32, 2730965), (34, 2570320), (38, 2299760), (40, 2184772), (68, 1285160), (76, 1149880), (80, 1092386), (85, 1028128), (89, 981920), (95, 919904), (136, 642580), (152, 574940), (160, 546193), (170, 514064), (178, 490960), (190, 459952), (272, 321290), (304, 287470), (323, 270560), (340, 257032), (356, 245480), (361, 242080), (380, 229976), (445, 196384), (544, 160645), (608, 143735), (646, 135280), (680, 128516), (712, 122740), (722, 121040), (760, 114988), (890, 98192), (1292, 67640), (1360, 64258), (1424, 61370), (1444, 60520), (1513, 57760), (1520, 57494), (1615, 54112), (1691, 51680), (1780, 49096), (1805, 48416), (2584, 33820), (2720, 32129), (2848, 30685), (2888, 30260), (3026, 28880), (3040, 28747), (3230, 27056), (3382, 25840), (3560, 24548), (3610, 24208), (5168, 16910), (5776, 15130), (6052, 14440), (6137, 14240), (6460, 13528), (6764, 12920), (7120, 12274), (7220, 12104), (7565, 11552), (8455, 10336)]