20705632740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{283}}^1\times {\mathrm{31267}}^1$

素因数の和:31578

約数の個数: 144

約数和(自身を含む): 67879576128

約数和(自身を除く): 47173943388

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 283, 390, 468, 566, 585, 780, 849, 1132, 1170, 1415, 1698, 2340, 2547, 2830, 3396, 3679, 4245, 5094, 5660, 7358, 8490, 10188, 11037, 12735, 14716, 16980, 18395, 22074, 25470, 31267, 33111, 36790, 44148, 50940, 55185, 62534, 66222, 73580, 93801, 110370, 125068, 132444, 156335, 165555, 187602, 220740, 281403, 312670, 331110, 375204, 406471, 469005, 562806, 625340, 662220, 812942, 938010, 1125612, 1219413, 1407015, 1625884, 1876020, 2032355, 2438826, 2814030, 3658239, 4064710, 4877652, 5628060, 6097065, 7316478, 8129420, 8848561, 12194130, 14632956, 17697122, 18291195, 24388260, 26545683, 35394244, 36582390, 44242805, 53091366, 73164780, 79637049, 88485610, 106182732, 115031293, 132728415, 159274098, 176971220, 230062586, 265456830, 318548196, 345093879, 398185245, 460125172, 530913660, 575156465, 690187758, 796370490, 1035281637, 1150312930, 1380375516, 1592740980, 1725469395, 2070563274, 2300625860, 3450938790, 4141126548, 5176408185, 6901877580, 10352816370, 20705632740]

約数ペア:

[(1, 20705632740), (2, 10352816370), (3, 6901877580), (4, 5176408185), (5, 4141126548), (6, 3450938790), (9, 2300625860), (10, 2070563274), (12, 1725469395), (13, 1592740980), (15, 1380375516), (18, 1150312930), (20, 1035281637), (26, 796370490), (30, 690187758), (36, 575156465), (39, 530913660), (45, 460125172), (52, 398185245), (60, 345093879), (65, 318548196), (78, 265456830), (90, 230062586), (117, 176971220), (130, 159274098), (156, 132728415), (180, 115031293), (195, 106182732), (234, 88485610), (260, 79637049), (283, 73164780), (390, 53091366), (468, 44242805), (566, 36582390), (585, 35394244), (780, 26545683), (849, 24388260), (1132, 18291195), (1170, 17697122), (1415, 14632956), (1698, 12194130), (2340, 8848561), (2547, 8129420), (2830, 7316478), (3396, 6097065), (3679, 5628060), (4245, 4877652), (5094, 4064710), (5660, 3658239), (7358, 2814030), (8490, 2438826), (10188, 2032355), (11037, 1876020), (12735, 1625884), (14716, 1407015), (16980, 1219413), (18395, 1125612), (22074, 938010), (25470, 812942), (31267, 662220), (33111, 625340), (36790, 562806), (44148, 469005), (50940, 406471), (55185, 375204), (62534, 331110), (66222, 312670), (73580, 281403), (93801, 220740), (110370, 187602), (125068, 165555), (132444, 156335)]