20502810

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:228

約数の個数: 96

約数和(自身を含む): 56339712

約数和(自身を除く): 35836902

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 37, 45, 47, 74, 90, 94, 111, 131, 141, 185, 222, 235, 262, 282, 333, 370, 393, 423, 470, 555, 655, 666, 705, 786, 846, 1110, 1179, 1310, 1410, 1665, 1739, 1965, 2115, 2358, 3330, 3478, 3930, 4230, 4847, 5217, 5895, 6157, 8695, 9694, 10434, 11790, 12314, 14541, 15651, 17390, 18471, 24235, 26085, 29082, 30785, 31302, 36942, 43623, 48470, 52170, 55413, 61570, 72705, 78255, 87246, 92355, 110826, 145410, 156510, 184710, 218115, 227809, 277065, 436230, 455618, 554130, 683427, 1139045, 1366854, 2050281, 2278090, 3417135, 4100562, 6834270, 10251405, 20502810]

約数ペア:

[(1, 20502810), (2, 10251405), (3, 6834270), (5, 4100562), (6, 3417135), (9, 2278090), (10, 2050281), (15, 1366854), (18, 1139045), (30, 683427), (37, 554130), (45, 455618), (47, 436230), (74, 277065), (90, 227809), (94, 218115), (111, 184710), (131, 156510), (141, 145410), (185, 110826), (222, 92355), (235, 87246), (262, 78255), (282, 72705), (333, 61570), (370, 55413), (393, 52170), (423, 48470), (470, 43623), (555, 36942), (655, 31302), (666, 30785), (705, 29082), (786, 26085), (846, 24235), (1110, 18471), (1179, 17390), (1310, 15651), (1410, 14541), (1665, 12314), (1739, 11790), (1965, 10434), (2115, 9694), (2358, 8695), (3330, 6157), (3478, 5895), (3930, 5217), (4230, 4847)]