1640672278

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1\times {\mathrm{883}}^1$

素因数の和:1157

約数の個数: 64

約数和(自身を含む): 3076489728

約数和(自身を除く): 1435817450

約数列:

[1, 2, 7, 14, 17, 34, 37, 74, 119, 211, 238, 259, 422, 518, 629, 883, 1258, 1477, 1766, 2954, 3587, 4403, 6181, 7174, 7807, 8806, 12362, 15011, 15614, 25109, 30022, 32671, 50218, 54649, 65342, 105077, 109298, 132719, 186313, 210154, 228697, 265438, 372626, 457394, 555407, 929033, 1110814, 1304191, 1858066, 2608382, 3167321, 3887849, 6334642, 6893581, 7775698, 13787162, 22171247, 44342494, 48255067, 96510134, 117190877, 234381754, 820336139, 1640672278]

約数ペア:

[(1, 1640672278), (2, 820336139), (7, 234381754), (14, 117190877), (17, 96510134), (34, 48255067), (37, 44342494), (74, 22171247), (119, 13787162), (211, 7775698), (238, 6893581), (259, 6334642), (422, 3887849), (518, 3167321), (629, 2608382), (883, 1858066), (1258, 1304191), (1477, 1110814), (1766, 929033), (2954, 555407), (3587, 457394), (4403, 372626), (6181, 265438), (7174, 228697), (7807, 210154), (8806, 186313), (12362, 132719), (15011, 109298), (15614, 105077), (25109, 65342), (30022, 54649), (32671, 50218)]