31157640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:164

約数の個数: 192

約数和(自身を含む): 109175040

約数和(自身を除く): 78017400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 30, 36, 40, 45, 46, 53, 60, 69, 71, 72, 90, 92, 106, 115, 120, 138, 142, 159, 180, 184, 207, 212, 213, 230, 265, 276, 284, 318, 345, 355, 360, 414, 424, 426, 460, 477, 530, 552, 568, 636, 639, 690, 710, 795, 828, 852, 920, 954, 1035, 1060, 1065, 1219, 1272, 1278, 1380, 1420, 1590, 1633, 1656, 1704, 1908, 2070, 2120, 2130, 2385, 2438, 2556, 2760, 2840, 3180, 3195, 3266, 3657, 3763, 3816, 4140, 4260, 4770, 4876, 4899, 5112, 6095, 6360, 6390, 6532, 7314, 7526, 8165, 8280, 8520, 9540, 9752, 9798, 10971, 11289, 12190, 12780, 13064, 14628, 14697, 15052, 16330, 18285, 18815, 19080, 19596, 21942, 22578, 24380, 24495, 25560, 29256, 29394, 30104, 32660, 33867, 36570, 37630, 39192, 43884, 45156, 48760, 48990, 54855, 56445, 58788, 65320, 67734, 73140, 73485, 75260, 86549, 87768, 90312, 97980, 109710, 112890, 117576, 135468, 146280, 146970, 150520, 169335, 173098, 195960, 219420, 225780, 259647, 270936, 293940, 338670, 346196, 432745, 438840, 451560, 519294, 587880, 677340, 692392, 778941, 865490, 1038588, 1298235, 1354680, 1557882, 1730980, 2077176, 2596470, 3115764, 3461960, 3894705, 5192940, 6231528, 7789410, 10385880, 15578820, 31157640]

約数ペア:

[(1, 31157640), (2, 15578820), (3, 10385880), (4, 7789410), (5, 6231528), (6, 5192940), (8, 3894705), (9, 3461960), (10, 3115764), (12, 2596470), (15, 2077176), (18, 1730980), (20, 1557882), (23, 1354680), (24, 1298235), (30, 1038588), (36, 865490), (40, 778941), (45, 692392), (46, 677340), (53, 587880), (60, 519294), (69, 451560), (71, 438840), (72, 432745), (90, 346196), (92, 338670), (106, 293940), (115, 270936), (120, 259647), (138, 225780), (142, 219420), (159, 195960), (180, 173098), (184, 169335), (207, 150520), (212, 146970), (213, 146280), (230, 135468), (265, 117576), (276, 112890), (284, 109710), (318, 97980), (345, 90312), (355, 87768), (360, 86549), (414, 75260), (424, 73485), (426, 73140), (460, 67734), (477, 65320), (530, 58788), (552, 56445), (568, 54855), (636, 48990), (639, 48760), (690, 45156), (710, 43884), (795, 39192), (828, 37630), (852, 36570), (920, 33867), (954, 32660), (1035, 30104), (1060, 29394), (1065, 29256), (1219, 25560), (1272, 24495), (1278, 24380), (1380, 22578), (1420, 21942), (1590, 19596), (1633, 19080), (1656, 18815), (1704, 18285), (1908, 16330), (2070, 15052), (2120, 14697), (2130, 14628), (2385, 13064), (2438, 12780), (2556, 12190), (2760, 11289), (2840, 10971), (3180, 9798), (3195, 9752), (3266, 9540), (3657, 8520), (3763, 8280), (3816, 8165), (4140, 7526), (4260, 7314), (4770, 6532), (4876, 6390), (4899, 6360), (5112, 6095)]