211495640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:265

約数の個数: 128

約数和(自身を含む): 530841600

約数和(自身を除く): 319345960

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 31, 34, 40, 62, 68, 79, 85, 124, 127, 136, 155, 158, 170, 248, 254, 310, 316, 340, 395, 508, 527, 620, 632, 635, 680, 790, 1016, 1054, 1240, 1270, 1343, 1580, 2108, 2159, 2449, 2540, 2635, 2686, 3160, 3937, 4216, 4318, 4898, 5080, 5270, 5372, 6715, 7874, 8636, 9796, 10033, 10540, 10744, 10795, 12245, 13430, 15748, 17272, 19592, 19685, 20066, 21080, 21590, 24490, 26860, 31496, 39370, 40132, 41633, 43180, 48980, 50165, 53720, 66929, 78740, 80264, 83266, 86360, 97960, 100330, 133858, 157480, 166532, 170561, 200660, 208165, 267716, 311023, 333064, 334645, 341122, 401320, 416330, 535432, 622046, 669290, 682244, 832660, 852805, 1244092, 1338580, 1364488, 1555115, 1665320, 1705610, 2488184, 2677160, 3110230, 3411220, 5287391, 6220460, 6822440, 10574782, 12440920, 21149564, 26436955, 42299128, 52873910, 105747820, 211495640]

約数ペア:

[(1, 211495640), (2, 105747820), (4, 52873910), (5, 42299128), (8, 26436955), (10, 21149564), (17, 12440920), (20, 10574782), (31, 6822440), (34, 6220460), (40, 5287391), (62, 3411220), (68, 3110230), (79, 2677160), (85, 2488184), (124, 1705610), (127, 1665320), (136, 1555115), (155, 1364488), (158, 1338580), (170, 1244092), (248, 852805), (254, 832660), (310, 682244), (316, 669290), (340, 622046), (395, 535432), (508, 416330), (527, 401320), (620, 341122), (632, 334645), (635, 333064), (680, 311023), (790, 267716), (1016, 208165), (1054, 200660), (1240, 170561), (1270, 166532), (1343, 157480), (1580, 133858), (2108, 100330), (2159, 97960), (2449, 86360), (2540, 83266), (2635, 80264), (2686, 78740), (3160, 66929), (3937, 53720), (4216, 50165), (4318, 48980), (4898, 43180), (5080, 41633), (5270, 40132), (5372, 39370), (6715, 31496), (7874, 26860), (8636, 24490), (9796, 21590), (10033, 21080), (10540, 20066), (10744, 19685), (10795, 19592), (12245, 17272), (13430, 15748)]