19471140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:238

約数の個数: 144

約数和(自身を含む): 65218608

約数和(自身を除く): 45747468

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 53, 60, 65, 78, 90, 106, 117, 130, 156, 157, 159, 180, 195, 212, 234, 260, 265, 314, 318, 390, 468, 471, 477, 530, 585, 628, 636, 689, 780, 785, 795, 942, 954, 1060, 1170, 1378, 1413, 1570, 1590, 1884, 1908, 2041, 2067, 2340, 2355, 2385, 2756, 2826, 3140, 3180, 3445, 4082, 4134, 4710, 4770, 5652, 6123, 6201, 6890, 7065, 8164, 8268, 8321, 9420, 9540, 10205, 10335, 12246, 12402, 13780, 14130, 16642, 18369, 20410, 20670, 24492, 24804, 24963, 28260, 30615, 31005, 33284, 36738, 40820, 41340, 41605, 49926, 61230, 62010, 73476, 74889, 83210, 91845, 99852, 108173, 122460, 124020, 124815, 149778, 166420, 183690, 216346, 249630, 299556, 324519, 367380, 374445, 432692, 499260, 540865, 649038, 748890, 973557, 1081730, 1298076, 1497780, 1622595, 1947114, 2163460, 3245190, 3894228, 4867785, 6490380, 9735570, 19471140]

約数ペア:

[(1, 19471140), (2, 9735570), (3, 6490380), (4, 4867785), (5, 3894228), (6, 3245190), (9, 2163460), (10, 1947114), (12, 1622595), (13, 1497780), (15, 1298076), (18, 1081730), (20, 973557), (26, 748890), (30, 649038), (36, 540865), (39, 499260), (45, 432692), (52, 374445), (53, 367380), (60, 324519), (65, 299556), (78, 249630), (90, 216346), (106, 183690), (117, 166420), (130, 149778), (156, 124815), (157, 124020), (159, 122460), (180, 108173), (195, 99852), (212, 91845), (234, 83210), (260, 74889), (265, 73476), (314, 62010), (318, 61230), (390, 49926), (468, 41605), (471, 41340), (477, 40820), (530, 36738), (585, 33284), (628, 31005), (636, 30615), (689, 28260), (780, 24963), (785, 24804), (795, 24492), (942, 20670), (954, 20410), (1060, 18369), (1170, 16642), (1378, 14130), (1413, 13780), (1570, 12402), (1590, 12246), (1884, 10335), (1908, 10205), (2041, 9540), (2067, 9420), (2340, 8321), (2355, 8268), (2385, 8164), (2756, 7065), (2826, 6890), (3140, 6201), (3180, 6123), (3445, 5652), (4082, 4770), (4134, 4710)]