18994950

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1$

素因数の和:239

約数の個数: 144

約数和(自身を含む): 58496256

約数和(自身を除く): 39501306

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 17, 18, 25, 26, 30, 34, 39, 45, 50, 51, 65, 75, 78, 85, 90, 102, 117, 130, 150, 153, 170, 191, 195, 221, 225, 234, 255, 306, 325, 382, 390, 425, 442, 450, 510, 573, 585, 650, 663, 765, 850, 955, 975, 1105, 1146, 1170, 1275, 1326, 1530, 1719, 1910, 1950, 1989, 2210, 2483, 2550, 2865, 2925, 3247, 3315, 3438, 3825, 3978, 4775, 4966, 5525, 5730, 5850, 6494, 6630, 7449, 7650, 8595, 9550, 9741, 9945, 11050, 12415, 14325, 14898, 16235, 16575, 17190, 19482, 19890, 22347, 24830, 28650, 29223, 32470, 33150, 37245, 42211, 42975, 44694, 48705, 49725, 58446, 62075, 74490, 81175, 84422, 85950, 97410, 99450, 111735, 124150, 126633, 146115, 162350, 186225, 211055, 223470, 243525, 253266, 292230, 372450, 379899, 422110, 487050, 558675, 633165, 730575, 759798, 1055275, 1117350, 1266330, 1461150, 1899495, 2110550, 3165825, 3798990, 6331650, 9497475, 18994950]

約数ペア:

[(1, 18994950), (2, 9497475), (3, 6331650), (5, 3798990), (6, 3165825), (9, 2110550), (10, 1899495), (13, 1461150), (15, 1266330), (17, 1117350), (18, 1055275), (25, 759798), (26, 730575), (30, 633165), (34, 558675), (39, 487050), (45, 422110), (50, 379899), (51, 372450), (65, 292230), (75, 253266), (78, 243525), (85, 223470), (90, 211055), (102, 186225), (117, 162350), (130, 146115), (150, 126633), (153, 124150), (170, 111735), (191, 99450), (195, 97410), (221, 85950), (225, 84422), (234, 81175), (255, 74490), (306, 62075), (325, 58446), (382, 49725), (390, 48705), (425, 44694), (442, 42975), (450, 42211), (510, 37245), (573, 33150), (585, 32470), (650, 29223), (663, 28650), (765, 24830), (850, 22347), (955, 19890), (975, 19482), (1105, 17190), (1146, 16575), (1170, 16235), (1275, 14898), (1326, 14325), (1530, 12415), (1719, 11050), (1910, 9945), (1950, 9741), (1989, 9550), (2210, 8595), (2483, 7650), (2550, 7449), (2865, 6630), (2925, 6494), (3247, 5850), (3315, 5730), (3438, 5525), (3825, 4966), (3978, 4775)]