1387403408

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{103}}^1\times {\mathrm{751}}^1$

素因数の和:940

約数の個数: 80

約数和(自身を含む): 2909337600

約数和(自身を除く): 1521934192

約数列:

[1, 2, 4, 8, 16, 19, 38, 59, 76, 103, 118, 152, 206, 236, 304, 412, 472, 751, 824, 944, 1121, 1502, 1648, 1957, 2242, 3004, 3914, 4484, 6008, 6077, 7828, 8968, 12016, 12154, 14269, 15656, 17936, 24308, 28538, 31312, 44309, 48616, 57076, 77353, 88618, 97232, 114152, 115463, 154706, 177236, 228304, 230926, 309412, 354472, 461852, 618824, 708944, 841871, 923704, 1237648, 1469707, 1683742, 1847408, 2939414, 3367484, 4563827, 5878828, 6734968, 9127654, 11757656, 13469936, 18255308, 23515312, 36510616, 73021232, 86712713, 173425426, 346850852, 693701704, 1387403408]

約数ペア:

[(1, 1387403408), (2, 693701704), (4, 346850852), (8, 173425426), (16, 86712713), (19, 73021232), (38, 36510616), (59, 23515312), (76, 18255308), (103, 13469936), (118, 11757656), (152, 9127654), (206, 6734968), (236, 5878828), (304, 4563827), (412, 3367484), (472, 2939414), (751, 1847408), (824, 1683742), (944, 1469707), (1121, 1237648), (1502, 923704), (1648, 841871), (1957, 708944), (2242, 618824), (3004, 461852), (3914, 354472), (4484, 309412), (6008, 230926), (6077, 228304), (7828, 177236), (8968, 154706), (12016, 115463), (12154, 114152), (14269, 97232), (15656, 88618), (17936, 77353), (24308, 57076), (28538, 48616), (31312, 44309)]