81893340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{151}}^1$

素因数の和:320

約数の個数: 144

約数和(自身を含む): 262918656

約数和(自身を除く): 181025316

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 131, 138, 151, 180, 207, 230, 262, 276, 302, 345, 393, 414, 453, 460, 524, 604, 655, 690, 755, 786, 828, 906, 1035, 1179, 1310, 1359, 1380, 1510, 1572, 1812, 1965, 2070, 2265, 2358, 2620, 2718, 3013, 3020, 3473, 3930, 4140, 4530, 4716, 5436, 5895, 6026, 6795, 6946, 7860, 9039, 9060, 10419, 11790, 12052, 13590, 13892, 15065, 17365, 18078, 19781, 20838, 23580, 27117, 27180, 30130, 31257, 34730, 36156, 39562, 41676, 45195, 52095, 54234, 59343, 60260, 62514, 69460, 79124, 90390, 98905, 104190, 108468, 118686, 125028, 135585, 156285, 178029, 180780, 197810, 208380, 237372, 271170, 296715, 312570, 356058, 395620, 454963, 542340, 593430, 625140, 712116, 890145, 909926, 1186860, 1364889, 1780290, 1819852, 2274815, 2729778, 3560580, 4094667, 4549630, 5459556, 6824445, 8189334, 9099260, 13648890, 16378668, 20473335, 27297780, 40946670, 81893340]

約数ペア:

[(1, 81893340), (2, 40946670), (3, 27297780), (4, 20473335), (5, 16378668), (6, 13648890), (9, 9099260), (10, 8189334), (12, 6824445), (15, 5459556), (18, 4549630), (20, 4094667), (23, 3560580), (30, 2729778), (36, 2274815), (45, 1819852), (46, 1780290), (60, 1364889), (69, 1186860), (90, 909926), (92, 890145), (115, 712116), (131, 625140), (138, 593430), (151, 542340), (180, 454963), (207, 395620), (230, 356058), (262, 312570), (276, 296715), (302, 271170), (345, 237372), (393, 208380), (414, 197810), (453, 180780), (460, 178029), (524, 156285), (604, 135585), (655, 125028), (690, 118686), (755, 108468), (786, 104190), (828, 98905), (906, 90390), (1035, 79124), (1179, 69460), (1310, 62514), (1359, 60260), (1380, 59343), (1510, 54234), (1572, 52095), (1812, 45195), (1965, 41676), (2070, 39562), (2265, 36156), (2358, 34730), (2620, 31257), (2718, 30130), (3013, 27180), (3020, 27117), (3473, 23580), (3930, 20838), (4140, 19781), (4530, 18078), (4716, 17365), (5436, 15065), (5895, 13892), (6026, 13590), (6795, 12052), (6946, 11790), (7860, 10419), (9039, 9060)]