19723440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{241}}^1$

素因数の和:299

約数の個数: 160

約数和(自身を含む): 69138432

約数和(自身を除く): 49414992

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 31, 33, 40, 44, 48, 55, 60, 62, 66, 80, 88, 93, 110, 120, 124, 132, 155, 165, 176, 186, 220, 240, 241, 248, 264, 310, 330, 341, 372, 440, 465, 482, 496, 528, 620, 660, 682, 723, 744, 880, 930, 964, 1023, 1205, 1240, 1320, 1364, 1446, 1488, 1705, 1860, 1928, 2046, 2410, 2480, 2640, 2651, 2728, 2892, 3410, 3615, 3720, 3856, 4092, 4820, 5115, 5302, 5456, 5784, 6820, 7230, 7440, 7471, 7953, 8184, 9640, 10230, 10604, 11568, 13255, 13640, 14460, 14942, 15906, 16368, 19280, 20460, 21208, 22413, 26510, 27280, 28920, 29884, 31812, 37355, 39765, 40920, 42416, 44826, 53020, 57840, 59768, 63624, 74710, 79530, 81840, 82181, 89652, 106040, 112065, 119536, 127248, 149420, 159060, 164362, 179304, 212080, 224130, 246543, 298840, 318120, 328724, 358608, 410905, 448260, 493086, 597680, 636240, 657448, 821810, 896520, 986172, 1232715, 1314896, 1643620, 1793040, 1972344, 2465430, 3287240, 3944688, 4930860, 6574480, 9861720, 19723440]

約数ペア:

[(1, 19723440), (2, 9861720), (3, 6574480), (4, 4930860), (5, 3944688), (6, 3287240), (8, 2465430), (10, 1972344), (11, 1793040), (12, 1643620), (15, 1314896), (16, 1232715), (20, 986172), (22, 896520), (24, 821810), (30, 657448), (31, 636240), (33, 597680), (40, 493086), (44, 448260), (48, 410905), (55, 358608), (60, 328724), (62, 318120), (66, 298840), (80, 246543), (88, 224130), (93, 212080), (110, 179304), (120, 164362), (124, 159060), (132, 149420), (155, 127248), (165, 119536), (176, 112065), (186, 106040), (220, 89652), (240, 82181), (241, 81840), (248, 79530), (264, 74710), (310, 63624), (330, 59768), (341, 57840), (372, 53020), (440, 44826), (465, 42416), (482, 40920), (496, 39765), (528, 37355), (620, 31812), (660, 29884), (682, 28920), (723, 27280), (744, 26510), (880, 22413), (930, 21208), (964, 20460), (1023, 19280), (1205, 16368), (1240, 15906), (1320, 14942), (1364, 14460), (1446, 13640), (1488, 13255), (1705, 11568), (1860, 10604), (1928, 10230), (2046, 9640), (2410, 8184), (2480, 7953), (2640, 7471), (2651, 7440), (2728, 7230), (2892, 6820), (3410, 5784), (3615, 5456), (3720, 5302), (3856, 5115), (4092, 4820)]