40381840

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{857}}^1$

素因数の和:920

約数の個数: 80

約数和(自身を含む): 102136320

約数和(自身を除く): 61754480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 38, 40, 62, 76, 80, 95, 124, 152, 155, 190, 248, 304, 310, 380, 496, 589, 620, 760, 857, 1178, 1240, 1520, 1714, 2356, 2480, 2945, 3428, 4285, 4712, 5890, 6856, 8570, 9424, 11780, 13712, 16283, 17140, 23560, 26567, 32566, 34280, 47120, 53134, 65132, 68560, 81415, 106268, 130264, 132835, 162830, 212536, 260528, 265670, 325660, 425072, 504773, 531340, 651320, 1009546, 1062680, 1302640, 2019092, 2125360, 2523865, 4038184, 5047730, 8076368, 10095460, 20190920, 40381840]

約数ペア:

[(1, 40381840), (2, 20190920), (4, 10095460), (5, 8076368), (8, 5047730), (10, 4038184), (16, 2523865), (19, 2125360), (20, 2019092), (31, 1302640), (38, 1062680), (40, 1009546), (62, 651320), (76, 531340), (80, 504773), (95, 425072), (124, 325660), (152, 265670), (155, 260528), (190, 212536), (248, 162830), (304, 132835), (310, 130264), (380, 106268), (496, 81415), (589, 68560), (620, 65132), (760, 53134), (857, 47120), (1178, 34280), (1240, 32566), (1520, 26567), (1714, 23560), (2356, 17140), (2480, 16283), (2945, 13712), (3428, 11780), (4285, 9424), (4712, 8570), (5890, 6856)]