18949140

素因数分解:

$2^2\times 3^5\times 5^1\times 7^1\times {\mathrm{557}}^1$

素因数の和:588

約数の個数: 144

約数和(自身を含む): 68245632

約数和(自身を除く): 49296492

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 243, 252, 270, 315, 324, 378, 405, 420, 486, 540, 557, 567, 630, 756, 810, 945, 972, 1114, 1134, 1215, 1260, 1620, 1671, 1701, 1890, 2228, 2268, 2430, 2785, 2835, 3342, 3402, 3780, 3899, 4860, 5013, 5570, 5670, 6684, 6804, 7798, 8355, 8505, 10026, 11140, 11340, 11697, 15039, 15596, 16710, 17010, 19495, 20052, 23394, 25065, 30078, 33420, 34020, 35091, 38990, 45117, 46788, 50130, 58485, 60156, 70182, 75195, 77980, 90234, 100260, 105273, 116970, 135351, 140364, 150390, 175455, 180468, 210546, 225585, 233940, 270702, 300780, 315819, 350910, 421092, 451170, 526365, 541404, 631638, 676755, 701820, 902340, 947457, 1052730, 1263276, 1353510, 1579095, 1894914, 2105460, 2707020, 3158190, 3789828, 4737285, 6316380, 9474570, 18949140]

約数ペア:

[(1, 18949140), (2, 9474570), (3, 6316380), (4, 4737285), (5, 3789828), (6, 3158190), (7, 2707020), (9, 2105460), (10, 1894914), (12, 1579095), (14, 1353510), (15, 1263276), (18, 1052730), (20, 947457), (21, 902340), (27, 701820), (28, 676755), (30, 631638), (35, 541404), (36, 526365), (42, 451170), (45, 421092), (54, 350910), (60, 315819), (63, 300780), (70, 270702), (81, 233940), (84, 225585), (90, 210546), (105, 180468), (108, 175455), (126, 150390), (135, 140364), (140, 135351), (162, 116970), (180, 105273), (189, 100260), (210, 90234), (243, 77980), (252, 75195), (270, 70182), (315, 60156), (324, 58485), (378, 50130), (405, 46788), (420, 45117), (486, 38990), (540, 35091), (557, 34020), (567, 33420), (630, 30078), (756, 25065), (810, 23394), (945, 20052), (972, 19495), (1114, 17010), (1134, 16710), (1215, 15596), (1260, 15039), (1620, 11697), (1671, 11340), (1701, 11140), (1890, 10026), (2228, 8505), (2268, 8355), (2430, 7798), (2785, 6804), (2835, 6684), (3342, 5670), (3402, 5570), (3780, 5013), (3899, 4860)]