31286970

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1$

素因数の和:78

約数の個数: 216

約数和(自身を含む): 102515868

約数和(自身を除く): 71228898

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 13, 15, 17, 18, 22, 26, 30, 33, 34, 39, 45, 51, 55, 65, 66, 78, 85, 90, 99, 102, 110, 117, 121, 130, 143, 153, 165, 169, 170, 187, 195, 198, 221, 234, 242, 255, 286, 306, 330, 338, 363, 374, 390, 429, 442, 495, 507, 510, 561, 585, 605, 663, 715, 726, 765, 845, 858, 935, 990, 1014, 1089, 1105, 1122, 1170, 1210, 1287, 1326, 1430, 1521, 1530, 1573, 1683, 1690, 1815, 1859, 1870, 1989, 2057, 2145, 2178, 2210, 2431, 2535, 2574, 2805, 2873, 3042, 3146, 3315, 3366, 3630, 3718, 3978, 4114, 4290, 4719, 4862, 5070, 5445, 5577, 5610, 5746, 6171, 6435, 6630, 7293, 7605, 7865, 8415, 8619, 9295, 9438, 9945, 10285, 10890, 11154, 12155, 12342, 12870, 14157, 14365, 14586, 15210, 15730, 16731, 16830, 17238, 18513, 18590, 19890, 20449, 20570, 21879, 23595, 24310, 25857, 26741, 27885, 28314, 28730, 30855, 31603, 33462, 36465, 37026, 40898, 43095, 43758, 47190, 51714, 53482, 55770, 61347, 61710, 63206, 70785, 72930, 80223, 83655, 86190, 92565, 94809, 102245, 109395, 122694, 129285, 133705, 141570, 158015, 160446, 167310, 184041, 185130, 189618, 204490, 218790, 240669, 258570, 267410, 284427, 306735, 316030, 347633, 368082, 401115, 474045, 481338, 568854, 613470, 695266, 802230, 920205, 948090, 1042899, 1203345, 1422135, 1738165, 1840410, 2085798, 2406690, 2844270, 3128697, 3476330, 5214495, 6257394, 10428990, 15643485, 31286970]

約数ペア:

[(1, 31286970), (2, 15643485), (3, 10428990), (5, 6257394), (6, 5214495), (9, 3476330), (10, 3128697), (11, 2844270), (13, 2406690), (15, 2085798), (17, 1840410), (18, 1738165), (22, 1422135), (26, 1203345), (30, 1042899), (33, 948090), (34, 920205), (39, 802230), (45, 695266), (51, 613470), (55, 568854), (65, 481338), (66, 474045), (78, 401115), (85, 368082), (90, 347633), (99, 316030), (102, 306735), (110, 284427), (117, 267410), (121, 258570), (130, 240669), (143, 218790), (153, 204490), (165, 189618), (169, 185130), (170, 184041), (187, 167310), (195, 160446), (198, 158015), (221, 141570), (234, 133705), (242, 129285), (255, 122694), (286, 109395), (306, 102245), (330, 94809), (338, 92565), (363, 86190), (374, 83655), (390, 80223), (429, 72930), (442, 70785), (495, 63206), (507, 61710), (510, 61347), (561, 55770), (585, 53482), (605, 51714), (663, 47190), (715, 43758), (726, 43095), (765, 40898), (845, 37026), (858, 36465), (935, 33462), (990, 31603), (1014, 30855), (1089, 28730), (1105, 28314), (1122, 27885), (1170, 26741), (1210, 25857), (1287, 24310), (1326, 23595), (1430, 21879), (1521, 20570), (1530, 20449), (1573, 19890), (1683, 18590), (1690, 18513), (1815, 17238), (1859, 16830), (1870, 16731), (1989, 15730), (2057, 15210), (2145, 14586), (2178, 14365), (2210, 14157), (2431, 12870), (2535, 12342), (2574, 12155), (2805, 11154), (2873, 10890), (3042, 10285), (3146, 9945), (3315, 9438), (3366, 9295), (3630, 8619), (3718, 8415), (3978, 7865), (4114, 7605), (4290, 7293), (4719, 6630), (4862, 6435), (5070, 6171), (5445, 5746), (5577, 5610)]