19911060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1$

素因数の和:222

約数の個数: 144

約数和(自身を含む): 66533376

約数和(自身を除く): 46622316

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 67, 78, 90, 117, 127, 130, 134, 156, 180, 195, 201, 234, 254, 260, 268, 335, 381, 390, 402, 468, 508, 585, 603, 635, 670, 762, 780, 804, 871, 1005, 1143, 1170, 1206, 1270, 1340, 1524, 1651, 1742, 1905, 2010, 2286, 2340, 2412, 2540, 2613, 3015, 3302, 3484, 3810, 4020, 4355, 4572, 4953, 5226, 5715, 6030, 6604, 7620, 7839, 8255, 8509, 8710, 9906, 10452, 11430, 12060, 13065, 14859, 15678, 16510, 17018, 17420, 19812, 22860, 24765, 25527, 26130, 29718, 31356, 33020, 34036, 39195, 42545, 49530, 51054, 52260, 59436, 74295, 76581, 78390, 85090, 99060, 102108, 110617, 127635, 148590, 153162, 156780, 170180, 221234, 255270, 297180, 306324, 331851, 382905, 442468, 510540, 553085, 663702, 765810, 995553, 1106170, 1327404, 1531620, 1659255, 1991106, 2212340, 3318510, 3982212, 4977765, 6637020, 9955530, 19911060]

約数ペア:

[(1, 19911060), (2, 9955530), (3, 6637020), (4, 4977765), (5, 3982212), (6, 3318510), (9, 2212340), (10, 1991106), (12, 1659255), (13, 1531620), (15, 1327404), (18, 1106170), (20, 995553), (26, 765810), (30, 663702), (36, 553085), (39, 510540), (45, 442468), (52, 382905), (60, 331851), (65, 306324), (67, 297180), (78, 255270), (90, 221234), (117, 170180), (127, 156780), (130, 153162), (134, 148590), (156, 127635), (180, 110617), (195, 102108), (201, 99060), (234, 85090), (254, 78390), (260, 76581), (268, 74295), (335, 59436), (381, 52260), (390, 51054), (402, 49530), (468, 42545), (508, 39195), (585, 34036), (603, 33020), (635, 31356), (670, 29718), (762, 26130), (780, 25527), (804, 24765), (871, 22860), (1005, 19812), (1143, 17420), (1170, 17018), (1206, 16510), (1270, 15678), (1340, 14859), (1524, 13065), (1651, 12060), (1742, 11430), (1905, 10452), (2010, 9906), (2286, 8710), (2340, 8509), (2412, 8255), (2540, 7839), (2613, 7620), (3015, 6604), (3302, 6030), (3484, 5715), (3810, 5226), (4020, 4953), (4355, 4572)]