208157312

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1$

素因数の和:326

約数の個数: 128

約数和(自身を含む): 493516800

約数和(自身を除く): 285359488

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 31, 32, 38, 44, 62, 64, 76, 88, 124, 128, 152, 176, 209, 248, 251, 304, 341, 352, 418, 496, 502, 589, 608, 682, 704, 836, 992, 1004, 1178, 1216, 1364, 1408, 1672, 1984, 2008, 2356, 2432, 2728, 2761, 3344, 3968, 4016, 4712, 4769, 5456, 5522, 6479, 6688, 7781, 8032, 9424, 9538, 10912, 11044, 12958, 13376, 15562, 16064, 18848, 19076, 21824, 22088, 25916, 26752, 31124, 32128, 37696, 38152, 43648, 44176, 51832, 52459, 62248, 75392, 76304, 85591, 88352, 103664, 104918, 124496, 147839, 152608, 171182, 176704, 207328, 209836, 248992, 295678, 305216, 342364, 353408, 414656, 419672, 497984, 591356, 610432, 684728, 829312, 839344, 995968, 1182712, 1369456, 1626229, 1678688, 2365424, 2738912, 3252458, 3357376, 4730848, 5477824, 6504916, 6714752, 9461696, 10955648, 13009832, 18923392, 26019664, 52039328, 104078656, 208157312]

約数ペア:

[(1, 208157312), (2, 104078656), (4, 52039328), (8, 26019664), (11, 18923392), (16, 13009832), (19, 10955648), (22, 9461696), (31, 6714752), (32, 6504916), (38, 5477824), (44, 4730848), (62, 3357376), (64, 3252458), (76, 2738912), (88, 2365424), (124, 1678688), (128, 1626229), (152, 1369456), (176, 1182712), (209, 995968), (248, 839344), (251, 829312), (304, 684728), (341, 610432), (352, 591356), (418, 497984), (496, 419672), (502, 414656), (589, 353408), (608, 342364), (682, 305216), (704, 295678), (836, 248992), (992, 209836), (1004, 207328), (1178, 176704), (1216, 171182), (1364, 152608), (1408, 147839), (1672, 124496), (1984, 104918), (2008, 103664), (2356, 88352), (2432, 85591), (2728, 76304), (2761, 75392), (3344, 62248), (3968, 52459), (4016, 51832), (4712, 44176), (4769, 43648), (5456, 38152), (5522, 37696), (6479, 32128), (6688, 31124), (7781, 26752), (8032, 25916), (9424, 22088), (9538, 21824), (10912, 19076), (11044, 18848), (12958, 16064), (13376, 15562)]