15819520

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{727}}^1$

素因数の和:765

約数の個数: 72

約数和(自身を含む): 40176864

約数和(自身を除く): 24357344

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 256, 272, 320, 340, 544, 640, 680, 727, 1088, 1280, 1360, 1454, 2176, 2720, 2908, 3635, 4352, 5440, 5816, 7270, 10880, 11632, 12359, 14540, 21760, 23264, 24718, 29080, 46528, 49436, 58160, 61795, 93056, 98872, 116320, 123590, 186112, 197744, 232640, 247180, 395488, 465280, 494360, 790976, 930560, 988720, 1581952, 1977440, 3163904, 3954880, 7909760, 15819520]

約数ペア:

[(1, 15819520), (2, 7909760), (4, 3954880), (5, 3163904), (8, 1977440), (10, 1581952), (16, 988720), (17, 930560), (20, 790976), (32, 494360), (34, 465280), (40, 395488), (64, 247180), (68, 232640), (80, 197744), (85, 186112), (128, 123590), (136, 116320), (160, 98872), (170, 93056), (256, 61795), (272, 58160), (320, 49436), (340, 46528), (544, 29080), (640, 24718), (680, 23264), (727, 21760), (1088, 14540), (1280, 12359), (1360, 11632), (1454, 10880), (2176, 7270), (2720, 5816), (2908, 5440), (3635, 4352)]