381786080

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{191}}^1$

素因数の和:281

約数の個数: 144

約数和(自身を含む): 1008951552

約数和(自身を除く): 627165472

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 65, 80, 104, 124, 130, 155, 160, 191, 208, 248, 260, 310, 382, 403, 416, 496, 520, 620, 764, 806, 955, 961, 992, 1040, 1240, 1528, 1612, 1910, 1922, 2015, 2080, 2480, 2483, 3056, 3224, 3820, 3844, 4030, 4805, 4960, 4966, 5921, 6112, 6448, 7640, 7688, 8060, 9610, 9932, 11842, 12415, 12493, 12896, 15280, 15376, 16120, 19220, 19864, 23684, 24830, 24986, 29605, 30560, 30752, 32240, 38440, 39728, 47368, 49660, 49972, 59210, 62465, 64480, 76880, 76973, 79456, 94736, 99320, 99944, 118420, 124930, 153760, 153946, 183551, 189472, 198640, 199888, 236840, 249860, 307892, 367102, 384865, 397280, 399776, 473680, 499720, 615784, 734204, 769730, 917755, 947360, 999440, 1231568, 1468408, 1539460, 1835510, 1998880, 2386163, 2463136, 2936816, 3078920, 3671020, 4772326, 5873632, 6157840, 7342040, 9544652, 11930815, 12315680, 14684080, 19089304, 23861630, 29368160, 38178608, 47723260, 76357216, 95446520, 190893040, 381786080]

約数ペア:

[(1, 381786080), (2, 190893040), (4, 95446520), (5, 76357216), (8, 47723260), (10, 38178608), (13, 29368160), (16, 23861630), (20, 19089304), (26, 14684080), (31, 12315680), (32, 11930815), (40, 9544652), (52, 7342040), (62, 6157840), (65, 5873632), (80, 4772326), (104, 3671020), (124, 3078920), (130, 2936816), (155, 2463136), (160, 2386163), (191, 1998880), (208, 1835510), (248, 1539460), (260, 1468408), (310, 1231568), (382, 999440), (403, 947360), (416, 917755), (496, 769730), (520, 734204), (620, 615784), (764, 499720), (806, 473680), (955, 399776), (961, 397280), (992, 384865), (1040, 367102), (1240, 307892), (1528, 249860), (1612, 236840), (1910, 199888), (1922, 198640), (2015, 189472), (2080, 183551), (2480, 153946), (2483, 153760), (3056, 124930), (3224, 118420), (3820, 99944), (3844, 99320), (4030, 94736), (4805, 79456), (4960, 76973), (4966, 76880), (5921, 64480), (6112, 62465), (6448, 59210), (7640, 49972), (7688, 49660), (8060, 47368), (9610, 39728), (9932, 38440), (11842, 32240), (12415, 30752), (12493, 30560), (12896, 29605), (15280, 24986), (15376, 24830), (16120, 23684), (19220, 19864)]