1991340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1$

素因数の和:88

約数の個数: 144

約数和(自身を含む): 6971328

約数和(自身を除く): 4979988

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 23, 26, 30, 36, 37, 39, 45, 46, 52, 60, 65, 69, 74, 78, 90, 92, 111, 115, 117, 130, 138, 148, 156, 180, 185, 195, 207, 222, 230, 234, 260, 276, 299, 333, 345, 370, 390, 414, 444, 460, 468, 481, 555, 585, 598, 666, 690, 740, 780, 828, 851, 897, 962, 1035, 1110, 1170, 1196, 1332, 1380, 1443, 1495, 1665, 1702, 1794, 1924, 2070, 2220, 2340, 2405, 2553, 2691, 2886, 2990, 3330, 3404, 3588, 4140, 4255, 4329, 4485, 4810, 5106, 5382, 5772, 5980, 6660, 7215, 7659, 8510, 8658, 8970, 9620, 10212, 10764, 11063, 12765, 13455, 14430, 15318, 17020, 17316, 17940, 21645, 22126, 25530, 26910, 28860, 30636, 33189, 38295, 43290, 44252, 51060, 53820, 55315, 66378, 76590, 86580, 99567, 110630, 132756, 153180, 165945, 199134, 221260, 331890, 398268, 497835, 663780, 995670, 1991340]

約数ペア:

[(1, 1991340), (2, 995670), (3, 663780), (4, 497835), (5, 398268), (6, 331890), (9, 221260), (10, 199134), (12, 165945), (13, 153180), (15, 132756), (18, 110630), (20, 99567), (23, 86580), (26, 76590), (30, 66378), (36, 55315), (37, 53820), (39, 51060), (45, 44252), (46, 43290), (52, 38295), (60, 33189), (65, 30636), (69, 28860), (74, 26910), (78, 25530), (90, 22126), (92, 21645), (111, 17940), (115, 17316), (117, 17020), (130, 15318), (138, 14430), (148, 13455), (156, 12765), (180, 11063), (185, 10764), (195, 10212), (207, 9620), (222, 8970), (230, 8658), (234, 8510), (260, 7659), (276, 7215), (299, 6660), (333, 5980), (345, 5772), (370, 5382), (390, 5106), (414, 4810), (444, 4485), (460, 4329), (468, 4255), (481, 4140), (555, 3588), (585, 3404), (598, 3330), (666, 2990), (690, 2886), (740, 2691), (780, 2553), (828, 2405), (851, 2340), (897, 2220), (962, 2070), (1035, 1924), (1110, 1794), (1170, 1702), (1196, 1665), (1332, 1495), (1380, 1443)]