19427940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{907}}^1$

素因数の和:946

約数の個数: 144

約数和(自身を含む): 71390592

約数和(自身を除く): 51962652

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 28, 30, 34, 35, 36, 42, 45, 51, 60, 63, 68, 70, 84, 85, 90, 102, 105, 119, 126, 140, 153, 170, 180, 204, 210, 238, 252, 255, 306, 315, 340, 357, 420, 476, 510, 595, 612, 630, 714, 765, 907, 1020, 1071, 1190, 1260, 1428, 1530, 1785, 1814, 2142, 2380, 2721, 3060, 3570, 3628, 4284, 4535, 5355, 5442, 6349, 7140, 8163, 9070, 10710, 10884, 12698, 13605, 15419, 16326, 18140, 19047, 21420, 25396, 27210, 30838, 31745, 32652, 38094, 40815, 46257, 54420, 57141, 61676, 63490, 76188, 77095, 81630, 92514, 95235, 107933, 114282, 126980, 138771, 154190, 163260, 185028, 190470, 215866, 228564, 231285, 277542, 285705, 308380, 323799, 380940, 431732, 462570, 539665, 555084, 571410, 647598, 693855, 925140, 971397, 1079330, 1142820, 1295196, 1387710, 1618995, 1942794, 2158660, 2775420, 3237990, 3885588, 4856985, 6475980, 9713970, 19427940]

約数ペア:

[(1, 19427940), (2, 9713970), (3, 6475980), (4, 4856985), (5, 3885588), (6, 3237990), (7, 2775420), (9, 2158660), (10, 1942794), (12, 1618995), (14, 1387710), (15, 1295196), (17, 1142820), (18, 1079330), (20, 971397), (21, 925140), (28, 693855), (30, 647598), (34, 571410), (35, 555084), (36, 539665), (42, 462570), (45, 431732), (51, 380940), (60, 323799), (63, 308380), (68, 285705), (70, 277542), (84, 231285), (85, 228564), (90, 215866), (102, 190470), (105, 185028), (119, 163260), (126, 154190), (140, 138771), (153, 126980), (170, 114282), (180, 107933), (204, 95235), (210, 92514), (238, 81630), (252, 77095), (255, 76188), (306, 63490), (315, 61676), (340, 57141), (357, 54420), (420, 46257), (476, 40815), (510, 38094), (595, 32652), (612, 31745), (630, 30838), (714, 27210), (765, 25396), (907, 21420), (1020, 19047), (1071, 18140), (1190, 16326), (1260, 15419), (1428, 13605), (1530, 12698), (1785, 10884), (1814, 10710), (2142, 9070), (2380, 8163), (2721, 7140), (3060, 6349), (3570, 5442), (3628, 5355), (4284, 4535)]