39178880

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{277}}^1$

素因数の和:326

約数の個数: 128

約数和(自身を含む): 107185680

約数和(自身を除く): 68006800

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 32, 34, 40, 52, 64, 65, 68, 80, 85, 104, 128, 130, 136, 160, 170, 208, 221, 260, 272, 277, 320, 340, 416, 442, 520, 544, 554, 640, 680, 832, 884, 1040, 1088, 1105, 1108, 1360, 1385, 1664, 1768, 2080, 2176, 2210, 2216, 2720, 2770, 3536, 3601, 4160, 4420, 4432, 4709, 5440, 5540, 7072, 7202, 8320, 8840, 8864, 9418, 10880, 11080, 14144, 14404, 17680, 17728, 18005, 18836, 22160, 23545, 28288, 28808, 35360, 35456, 36010, 37672, 44320, 47090, 57616, 61217, 70720, 72020, 75344, 88640, 94180, 115232, 122434, 141440, 144040, 150688, 177280, 188360, 230464, 244868, 288080, 301376, 306085, 376720, 460928, 489736, 576160, 602752, 612170, 753440, 979472, 1152320, 1224340, 1506880, 1958944, 2304640, 2448680, 3013760, 3917888, 4897360, 7835776, 9794720, 19589440, 39178880]

約数ペア:

[(1, 39178880), (2, 19589440), (4, 9794720), (5, 7835776), (8, 4897360), (10, 3917888), (13, 3013760), (16, 2448680), (17, 2304640), (20, 1958944), (26, 1506880), (32, 1224340), (34, 1152320), (40, 979472), (52, 753440), (64, 612170), (65, 602752), (68, 576160), (80, 489736), (85, 460928), (104, 376720), (128, 306085), (130, 301376), (136, 288080), (160, 244868), (170, 230464), (208, 188360), (221, 177280), (260, 150688), (272, 144040), (277, 141440), (320, 122434), (340, 115232), (416, 94180), (442, 88640), (520, 75344), (544, 72020), (554, 70720), (640, 61217), (680, 57616), (832, 47090), (884, 44320), (1040, 37672), (1088, 36010), (1105, 35456), (1108, 35360), (1360, 28808), (1385, 28288), (1664, 23545), (1768, 22160), (2080, 18836), (2176, 18005), (2210, 17728), (2216, 17680), (2720, 14404), (2770, 14144), (3536, 11080), (3601, 10880), (4160, 9418), (4420, 8864), (4432, 8840), (4709, 8320), (5440, 7202), (5540, 7072)]