291010020

素因数分解:

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

素因数の和:191

約数の個数: 216

約数和(自身を含む): 988932672

約数和(自身を除く): 697922652

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 49, 60, 62, 70, 84, 93, 98, 103, 105, 124, 140, 147, 155, 186, 196, 206, 210, 217, 245, 294, 309, 310, 372, 412, 420, 434, 465, 490, 515, 588, 618, 620, 651, 721, 735, 868, 930, 961, 980, 1030, 1085, 1236, 1302, 1442, 1470, 1519, 1545, 1860, 1922, 2060, 2163, 2170, 2604, 2883, 2884, 2940, 3038, 3090, 3193, 3255, 3605, 3844, 4326, 4340, 4557, 4805, 5047, 5766, 6076, 6180, 6386, 6510, 6727, 7210, 7595, 8652, 9114, 9579, 9610, 10094, 10815, 11532, 12772, 13020, 13454, 14415, 14420, 15141, 15190, 15965, 18228, 19158, 19220, 20181, 20188, 21630, 22351, 22785, 25235, 26908, 28830, 30282, 30380, 31930, 33635, 38316, 40362, 43260, 44702, 45570, 47089, 47895, 50470, 57660, 60564, 63860, 67053, 67270, 75705, 80724, 89404, 91140, 94178, 95790, 98983, 100905, 100940, 111755, 134106, 134540, 141267, 151410, 156457, 188356, 191580, 197966, 201810, 223510, 235445, 268212, 282534, 296949, 302820, 312914, 335265, 395932, 403620, 447020, 469371, 470890, 494915, 565068, 593898, 625828, 670530, 692881, 706335, 782285, 938742, 941780, 989830, 1187796, 1341060, 1385762, 1412670, 1484745, 1564570, 1877484, 1979660, 2078643, 2346855, 2771524, 2825340, 2969490, 3129140, 3464405, 4157286, 4693710, 4850167, 5938980, 6928810, 8314572, 9387420, 9700334, 10393215, 13857620, 14550501, 19400668, 20786430, 24250835, 29101002, 41572860, 48501670, 58202004, 72752505, 97003340, 145505010, 291010020]

約数ペア:

[(1, 291010020), (2, 145505010), (3, 97003340), (4, 72752505), (5, 58202004), (6, 48501670), (7, 41572860), (10, 29101002), (12, 24250835), (14, 20786430), (15, 19400668), (20, 14550501), (21, 13857620), (28, 10393215), (30, 9700334), (31, 9387420), (35, 8314572), (42, 6928810), (49, 5938980), (60, 4850167), (62, 4693710), (70, 4157286), (84, 3464405), (93, 3129140), (98, 2969490), (103, 2825340), (105, 2771524), (124, 2346855), (140, 2078643), (147, 1979660), (155, 1877484), (186, 1564570), (196, 1484745), (206, 1412670), (210, 1385762), (217, 1341060), (245, 1187796), (294, 989830), (309, 941780), (310, 938742), (372, 782285), (412, 706335), (420, 692881), (434, 670530), (465, 625828), (490, 593898), (515, 565068), (588, 494915), (618, 470890), (620, 469371), (651, 447020), (721, 403620), (735, 395932), (868, 335265), (930, 312914), (961, 302820), (980, 296949), (1030, 282534), (1085, 268212), (1236, 235445), (1302, 223510), (1442, 201810), (1470, 197966), (1519, 191580), (1545, 188356), (1860, 156457), (1922, 151410), (2060, 141267), (2163, 134540), (2170, 134106), (2604, 111755), (2883, 100940), (2884, 100905), (2940, 98983), (3038, 95790), (3090, 94178), (3193, 91140), (3255, 89404), (3605, 80724), (3844, 75705), (4326, 67270), (4340, 67053), (4557, 63860), (4805, 60564), (5047, 57660), (5766, 50470), (6076, 47895), (6180, 47089), (6386, 45570), (6510, 44702), (6727, 43260), (7210, 40362), (7595, 38316), (8652, 33635), (9114, 31930), (9579, 30380), (9610, 30282), (10094, 28830), (10815, 26908), (11532, 25235), (12772, 22785), (13020, 22351), (13454, 21630), (14415, 20188), (14420, 20181), (15141, 19220), (15190, 19158), (15965, 18228)]