19291860

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{251}}^1$

素因数の和:334

約数の個数: 144

約数和(自身を含む): 68245632

約数和(自身を除く): 48953772

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 61, 63, 70, 84, 90, 105, 122, 126, 140, 180, 183, 210, 244, 251, 252, 305, 315, 366, 420, 427, 502, 549, 610, 630, 732, 753, 854, 915, 1004, 1098, 1220, 1255, 1260, 1281, 1506, 1708, 1757, 1830, 2135, 2196, 2259, 2510, 2562, 2745, 3012, 3514, 3660, 3765, 3843, 4270, 4518, 5020, 5124, 5271, 5490, 6405, 7028, 7530, 7686, 8540, 8785, 9036, 10542, 10980, 11295, 12810, 15060, 15311, 15372, 15813, 17570, 19215, 21084, 22590, 25620, 26355, 30622, 31626, 35140, 38430, 45180, 45933, 52710, 61244, 63252, 76555, 76860, 79065, 91866, 105420, 107177, 137799, 153110, 158130, 183732, 214354, 229665, 275598, 306220, 316260, 321531, 428708, 459330, 535885, 551196, 643062, 688995, 918660, 964593, 1071770, 1286124, 1377990, 1607655, 1929186, 2143540, 2755980, 3215310, 3858372, 4822965, 6430620, 9645930, 19291860]

約数ペア:

[(1, 19291860), (2, 9645930), (3, 6430620), (4, 4822965), (5, 3858372), (6, 3215310), (7, 2755980), (9, 2143540), (10, 1929186), (12, 1607655), (14, 1377990), (15, 1286124), (18, 1071770), (20, 964593), (21, 918660), (28, 688995), (30, 643062), (35, 551196), (36, 535885), (42, 459330), (45, 428708), (60, 321531), (61, 316260), (63, 306220), (70, 275598), (84, 229665), (90, 214354), (105, 183732), (122, 158130), (126, 153110), (140, 137799), (180, 107177), (183, 105420), (210, 91866), (244, 79065), (251, 76860), (252, 76555), (305, 63252), (315, 61244), (366, 52710), (420, 45933), (427, 45180), (502, 38430), (549, 35140), (610, 31626), (630, 30622), (732, 26355), (753, 25620), (854, 22590), (915, 21084), (1004, 19215), (1098, 17570), (1220, 15813), (1255, 15372), (1260, 15311), (1281, 15060), (1506, 12810), (1708, 11295), (1757, 10980), (1830, 10542), (2135, 9036), (2196, 8785), (2259, 8540), (2510, 7686), (2562, 7530), (2745, 7028), (3012, 6405), (3514, 5490), (3660, 5271), (3765, 5124), (3843, 5020), (4270, 4518)]