638291248

素因数分解:

$2^4\times 7^2\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{577}}^1$

素因数の和:699

約数の個数: 120

約数和(自身を含む): 1544244912

約数和(自身を除く): 905953664

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 49, 56, 68, 83, 98, 112, 119, 136, 166, 196, 238, 272, 332, 392, 476, 577, 581, 664, 784, 833, 952, 1154, 1162, 1328, 1411, 1666, 1904, 2308, 2324, 2822, 3332, 4039, 4067, 4616, 4648, 5644, 6664, 8078, 8134, 9232, 9296, 9809, 9877, 11288, 13328, 16156, 16268, 19618, 19754, 22576, 28273, 32312, 32536, 39236, 39508, 47891, 56546, 64624, 65072, 68663, 69139, 78472, 79016, 95782, 113092, 137326, 138278, 156944, 158032, 191564, 226184, 274652, 276556, 335237, 383128, 452368, 480641, 549304, 553112, 670474, 766256, 814147, 961282, 1098608, 1106224, 1340948, 1628294, 1922564, 2346659, 2681896, 3256588, 3845128, 4693318, 5363792, 5699029, 6513176, 7690256, 9386636, 11398058, 13026352, 18773272, 22796116, 37546544, 39893203, 45592232, 79786406, 91184464, 159572812, 319145624, 638291248]

約数ペア:

[(1, 638291248), (2, 319145624), (4, 159572812), (7, 91184464), (8, 79786406), (14, 45592232), (16, 39893203), (17, 37546544), (28, 22796116), (34, 18773272), (49, 13026352), (56, 11398058), (68, 9386636), (83, 7690256), (98, 6513176), (112, 5699029), (119, 5363792), (136, 4693318), (166, 3845128), (196, 3256588), (238, 2681896), (272, 2346659), (332, 1922564), (392, 1628294), (476, 1340948), (577, 1106224), (581, 1098608), (664, 961282), (784, 814147), (833, 766256), (952, 670474), (1154, 553112), (1162, 549304), (1328, 480641), (1411, 452368), (1666, 383128), (1904, 335237), (2308, 276556), (2324, 274652), (2822, 226184), (3332, 191564), (4039, 158032), (4067, 156944), (4616, 138278), (4648, 137326), (5644, 113092), (6664, 95782), (8078, 79016), (8134, 78472), (9232, 69139), (9296, 68663), (9809, 65072), (9877, 64624), (11288, 56546), (13328, 47891), (16156, 39508), (16268, 39236), (19618, 32536), (19754, 32312), (22576, 28273)]