31181850

素因数分解:

$2^1\times 3^2\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{521}}^1$

素因数の和:565

約数の個数: 144

約数和(自身を含む): 100975680

約数和(自身を除く): 69793830

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 19, 21, 25, 30, 35, 38, 42, 45, 50, 57, 63, 70, 75, 90, 95, 105, 114, 126, 133, 150, 171, 175, 190, 210, 225, 266, 285, 315, 342, 350, 399, 450, 475, 521, 525, 570, 630, 665, 798, 855, 950, 1042, 1050, 1197, 1330, 1425, 1563, 1575, 1710, 1995, 2394, 2605, 2850, 3126, 3150, 3325, 3647, 3990, 4275, 4689, 5210, 5985, 6650, 7294, 7815, 8550, 9378, 9899, 9975, 10941, 11970, 13025, 15630, 18235, 19798, 19950, 21882, 23445, 26050, 29697, 29925, 32823, 36470, 39075, 46890, 49495, 54705, 59394, 59850, 65646, 69293, 78150, 89091, 91175, 98990, 109410, 117225, 138586, 148485, 164115, 178182, 182350, 207879, 234450, 247475, 273525, 296970, 328230, 346465, 415758, 445455, 494950, 547050, 623637, 692930, 742425, 820575, 890910, 1039395, 1247274, 1484850, 1641150, 1732325, 2078790, 2227275, 3118185, 3464650, 4454550, 5196975, 6236370, 10393950, 15590925, 31181850]

約数ペア:

[(1, 31181850), (2, 15590925), (3, 10393950), (5, 6236370), (6, 5196975), (7, 4454550), (9, 3464650), (10, 3118185), (14, 2227275), (15, 2078790), (18, 1732325), (19, 1641150), (21, 1484850), (25, 1247274), (30, 1039395), (35, 890910), (38, 820575), (42, 742425), (45, 692930), (50, 623637), (57, 547050), (63, 494950), (70, 445455), (75, 415758), (90, 346465), (95, 328230), (105, 296970), (114, 273525), (126, 247475), (133, 234450), (150, 207879), (171, 182350), (175, 178182), (190, 164115), (210, 148485), (225, 138586), (266, 117225), (285, 109410), (315, 98990), (342, 91175), (350, 89091), (399, 78150), (450, 69293), (475, 65646), (521, 59850), (525, 59394), (570, 54705), (630, 49495), (665, 46890), (798, 39075), (855, 36470), (950, 32823), (1042, 29925), (1050, 29697), (1197, 26050), (1330, 23445), (1425, 21882), (1563, 19950), (1575, 19798), (1710, 18235), (1995, 15630), (2394, 13025), (2605, 11970), (2850, 10941), (3126, 9975), (3150, 9899), (3325, 9378), (3647, 8550), (3990, 7815), (4275, 7294), (4689, 6650), (5210, 5985)]