31090620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{163}}^1$

素因数の和:220

約数の個数: 144

約数和(自身を含む): 101501568

約数和(自身を除く): 70410948

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 17, 20, 22, 30, 33, 34, 44, 51, 55, 60, 66, 68, 85, 102, 110, 132, 163, 165, 170, 187, 204, 220, 255, 289, 326, 330, 340, 374, 489, 510, 561, 578, 652, 660, 748, 815, 867, 935, 978, 1020, 1122, 1156, 1445, 1630, 1734, 1793, 1870, 1956, 2244, 2445, 2771, 2805, 2890, 3179, 3260, 3468, 3586, 3740, 4335, 4890, 5379, 5542, 5610, 5780, 6358, 7172, 8313, 8670, 8965, 9537, 9780, 10758, 11084, 11220, 12716, 13855, 15895, 16626, 17340, 17930, 19074, 21516, 26895, 27710, 30481, 31790, 33252, 35860, 38148, 41565, 47107, 47685, 53790, 55420, 60962, 63580, 83130, 91443, 94214, 95370, 107580, 121924, 141321, 152405, 166260, 182886, 188428, 190740, 235535, 282642, 304810, 365772, 457215, 471070, 518177, 565284, 609620, 706605, 914430, 942140, 1036354, 1413210, 1554531, 1828860, 2072708, 2590885, 2826420, 3109062, 5181770, 6218124, 7772655, 10363540, 15545310, 31090620]

約数ペア:

[(1, 31090620), (2, 15545310), (3, 10363540), (4, 7772655), (5, 6218124), (6, 5181770), (10, 3109062), (11, 2826420), (12, 2590885), (15, 2072708), (17, 1828860), (20, 1554531), (22, 1413210), (30, 1036354), (33, 942140), (34, 914430), (44, 706605), (51, 609620), (55, 565284), (60, 518177), (66, 471070), (68, 457215), (85, 365772), (102, 304810), (110, 282642), (132, 235535), (163, 190740), (165, 188428), (170, 182886), (187, 166260), (204, 152405), (220, 141321), (255, 121924), (289, 107580), (326, 95370), (330, 94214), (340, 91443), (374, 83130), (489, 63580), (510, 60962), (561, 55420), (578, 53790), (652, 47685), (660, 47107), (748, 41565), (815, 38148), (867, 35860), (935, 33252), (978, 31790), (1020, 30481), (1122, 27710), (1156, 26895), (1445, 21516), (1630, 19074), (1734, 17930), (1793, 17340), (1870, 16626), (1956, 15895), (2244, 13855), (2445, 12716), (2771, 11220), (2805, 11084), (2890, 10758), (3179, 9780), (3260, 9537), (3468, 8965), (3586, 8670), (3740, 8313), (4335, 7172), (4890, 6358), (5379, 5780), (5542, 5610)]