2661520

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1$

素因数の和:152

約数の個数: 80

約数和(自身を含む): 6963840

約数和(自身を除く): 4302320

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 34, 38, 40, 68, 76, 80, 85, 95, 103, 136, 152, 170, 190, 206, 272, 304, 323, 340, 380, 412, 515, 646, 680, 760, 824, 1030, 1292, 1360, 1520, 1615, 1648, 1751, 1957, 2060, 2584, 3230, 3502, 3914, 4120, 5168, 6460, 7004, 7828, 8240, 8755, 9785, 12920, 14008, 15656, 17510, 19570, 25840, 28016, 31312, 33269, 35020, 39140, 66538, 70040, 78280, 133076, 140080, 156560, 166345, 266152, 332690, 532304, 665380, 1330760, 2661520]

約数ペア:

[(1, 2661520), (2, 1330760), (4, 665380), (5, 532304), (8, 332690), (10, 266152), (16, 166345), (17, 156560), (19, 140080), (20, 133076), (34, 78280), (38, 70040), (40, 66538), (68, 39140), (76, 35020), (80, 33269), (85, 31312), (95, 28016), (103, 25840), (136, 19570), (152, 17510), (170, 15656), (190, 14008), (206, 12920), (272, 9785), (304, 8755), (323, 8240), (340, 7828), (380, 7004), (412, 6460), (515, 5168), (646, 4120), (680, 3914), (760, 3502), (824, 3230), (1030, 2584), (1292, 2060), (1360, 1957), (1520, 1751), (1615, 1648)]