28162260

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{103}}^1$

素因数の和:163

約数の個数: 216

約数和(自身を含む): 103574016

約数和(自身を除く): 75411756

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 31, 35, 36, 42, 45, 49, 60, 62, 63, 70, 84, 90, 93, 98, 103, 105, 124, 126, 140, 147, 155, 180, 186, 196, 206, 210, 217, 245, 252, 279, 294, 309, 310, 315, 372, 412, 420, 434, 441, 465, 490, 515, 558, 588, 618, 620, 630, 651, 721, 735, 868, 882, 927, 930, 980, 1030, 1085, 1116, 1236, 1260, 1302, 1395, 1442, 1470, 1519, 1545, 1764, 1854, 1860, 1953, 2060, 2163, 2170, 2205, 2604, 2790, 2884, 2940, 3038, 3090, 3193, 3255, 3605, 3708, 3906, 4326, 4340, 4410, 4557, 4635, 5047, 5580, 6076, 6180, 6386, 6489, 6510, 7210, 7595, 7812, 8652, 8820, 9114, 9270, 9579, 9765, 10094, 10815, 12772, 12978, 13020, 13671, 14420, 15141, 15190, 15965, 18228, 18540, 19158, 19530, 20188, 21630, 22351, 22785, 25235, 25956, 27342, 28737, 30282, 30380, 31930, 32445, 38316, 39060, 43260, 44702, 45423, 45570, 47895, 50470, 54684, 57474, 60564, 63860, 64890, 67053, 68355, 75705, 89404, 90846, 91140, 95790, 100940, 111755, 114948, 129780, 134106, 136710, 143685, 151410, 156457, 181692, 191580, 201159, 223510, 227115, 268212, 273420, 287370, 302820, 312914, 335265, 402318, 447020, 454230, 469371, 574740, 625828, 670530, 782285, 804636, 908460, 938742, 1005795, 1341060, 1408113, 1564570, 1877484, 2011590, 2346855, 2816226, 3129140, 4023180, 4693710, 5632452, 7040565, 9387420, 14081130, 28162260]

約数ペア:

[(1, 28162260), (2, 14081130), (3, 9387420), (4, 7040565), (5, 5632452), (6, 4693710), (7, 4023180), (9, 3129140), (10, 2816226), (12, 2346855), (14, 2011590), (15, 1877484), (18, 1564570), (20, 1408113), (21, 1341060), (28, 1005795), (30, 938742), (31, 908460), (35, 804636), (36, 782285), (42, 670530), (45, 625828), (49, 574740), (60, 469371), (62, 454230), (63, 447020), (70, 402318), (84, 335265), (90, 312914), (93, 302820), (98, 287370), (103, 273420), (105, 268212), (124, 227115), (126, 223510), (140, 201159), (147, 191580), (155, 181692), (180, 156457), (186, 151410), (196, 143685), (206, 136710), (210, 134106), (217, 129780), (245, 114948), (252, 111755), (279, 100940), (294, 95790), (309, 91140), (310, 90846), (315, 89404), (372, 75705), (412, 68355), (420, 67053), (434, 64890), (441, 63860), (465, 60564), (490, 57474), (515, 54684), (558, 50470), (588, 47895), (618, 45570), (620, 45423), (630, 44702), (651, 43260), (721, 39060), (735, 38316), (868, 32445), (882, 31930), (927, 30380), (930, 30282), (980, 28737), (1030, 27342), (1085, 25956), (1116, 25235), (1236, 22785), (1260, 22351), (1302, 21630), (1395, 20188), (1442, 19530), (1470, 19158), (1519, 18540), (1545, 18228), (1764, 15965), (1854, 15190), (1860, 15141), (1953, 14420), (2060, 13671), (2163, 13020), (2170, 12978), (2205, 12772), (2604, 10815), (2790, 10094), (2884, 9765), (2940, 9579), (3038, 9270), (3090, 9114), (3193, 8820), (3255, 8652), (3605, 7812), (3708, 7595), (3906, 7210), (4326, 6510), (4340, 6489), (4410, 6386), (4557, 6180), (4635, 6076), (5047, 5580)]