19528380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:180

約数の個数: 144

約数和(自身を含む): 63685440

約数和(自身を除く): 44157060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 53, 60, 69, 89, 90, 92, 106, 115, 138, 159, 178, 180, 207, 212, 230, 265, 267, 276, 318, 345, 356, 414, 445, 460, 477, 530, 534, 636, 690, 795, 801, 828, 890, 954, 1035, 1060, 1068, 1219, 1335, 1380, 1590, 1602, 1780, 1908, 2047, 2070, 2385, 2438, 2670, 3180, 3204, 3657, 4005, 4094, 4140, 4717, 4770, 4876, 5340, 6095, 6141, 7314, 8010, 8188, 9434, 9540, 10235, 10971, 12190, 12282, 14151, 14628, 16020, 18285, 18423, 18868, 20470, 21942, 23585, 24380, 24564, 28302, 30705, 36570, 36846, 40940, 42453, 43884, 47170, 54855, 56604, 61410, 70755, 73140, 73692, 84906, 92115, 94340, 108491, 109710, 122820, 141510, 169812, 184230, 212265, 216982, 219420, 283020, 325473, 368460, 424530, 433964, 542455, 650946, 849060, 976419, 1084910, 1301892, 1627365, 1952838, 2169820, 3254730, 3905676, 4882095, 6509460, 9764190, 19528380]

約数ペア:

[(1, 19528380), (2, 9764190), (3, 6509460), (4, 4882095), (5, 3905676), (6, 3254730), (9, 2169820), (10, 1952838), (12, 1627365), (15, 1301892), (18, 1084910), (20, 976419), (23, 849060), (30, 650946), (36, 542455), (45, 433964), (46, 424530), (53, 368460), (60, 325473), (69, 283020), (89, 219420), (90, 216982), (92, 212265), (106, 184230), (115, 169812), (138, 141510), (159, 122820), (178, 109710), (180, 108491), (207, 94340), (212, 92115), (230, 84906), (265, 73692), (267, 73140), (276, 70755), (318, 61410), (345, 56604), (356, 54855), (414, 47170), (445, 43884), (460, 42453), (477, 40940), (530, 36846), (534, 36570), (636, 30705), (690, 28302), (795, 24564), (801, 24380), (828, 23585), (890, 21942), (954, 20470), (1035, 18868), (1060, 18423), (1068, 18285), (1219, 16020), (1335, 14628), (1380, 14151), (1590, 12282), (1602, 12190), (1780, 10971), (1908, 10235), (2047, 9540), (2070, 9434), (2385, 8188), (2438, 8010), (2670, 7314), (3180, 6141), (3204, 6095), (3657, 5340), (4005, 4876), (4094, 4770), (4140, 4717)]