1921591840

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{1871}}^1$

素因数の和:2031

約数の個数: 144

約数和(自身を含む): 5324102784

約数和(自身を除く): 3402510944

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 131, 140, 160, 196, 224, 245, 262, 280, 392, 490, 524, 560, 655, 784, 917, 980, 1048, 1120, 1310, 1568, 1834, 1871, 1960, 2096, 2620, 3668, 3742, 3920, 4192, 4585, 5240, 6419, 7336, 7484, 7840, 9170, 9355, 10480, 12838, 13097, 14672, 14968, 18340, 18710, 20960, 25676, 26194, 29344, 29936, 32095, 36680, 37420, 51352, 52388, 59872, 64190, 65485, 73360, 74840, 91679, 102704, 104776, 128380, 130970, 146720, 149680, 183358, 205408, 209552, 245101, 256760, 261940, 299360, 366716, 419104, 458395, 490202, 513520, 523880, 733432, 916790, 980404, 1027040, 1047760, 1225505, 1466864, 1715707, 1833580, 1960808, 2095520, 2451010, 2933728, 3431414, 3667160, 3921616, 4902020, 6862828, 7334320, 7843232, 8578535, 9804040, 12009949, 13725656, 14668640, 17157070, 19608080, 24019898, 27451312, 34314140, 39216160, 48039796, 54902624, 60049745, 68628280, 96079592, 120099490, 137256560, 192159184, 240198980, 274513120, 384318368, 480397960, 960795920, 1921591840]

約数ペア:

[(1, 1921591840), (2, 960795920), (4, 480397960), (5, 384318368), (7, 274513120), (8, 240198980), (10, 192159184), (14, 137256560), (16, 120099490), (20, 96079592), (28, 68628280), (32, 60049745), (35, 54902624), (40, 48039796), (49, 39216160), (56, 34314140), (70, 27451312), (80, 24019898), (98, 19608080), (112, 17157070), (131, 14668640), (140, 13725656), (160, 12009949), (196, 9804040), (224, 8578535), (245, 7843232), (262, 7334320), (280, 6862828), (392, 4902020), (490, 3921616), (524, 3667160), (560, 3431414), (655, 2933728), (784, 2451010), (917, 2095520), (980, 1960808), (1048, 1833580), (1120, 1715707), (1310, 1466864), (1568, 1225505), (1834, 1047760), (1871, 1027040), (1960, 980404), (2096, 916790), (2620, 733432), (3668, 523880), (3742, 513520), (3920, 490202), (4192, 458395), (4585, 419104), (5240, 366716), (6419, 299360), (7336, 261940), (7484, 256760), (7840, 245101), (9170, 209552), (9355, 205408), (10480, 183358), (12838, 149680), (13097, 146720), (14672, 130970), (14968, 128380), (18340, 104776), (18710, 102704), (20960, 91679), (25676, 74840), (26194, 73360), (29344, 65485), (29936, 64190), (32095, 59872), (36680, 52388), (37420, 51352)]